| Overall Size and Proportion | Stem length, bloom diameter, leaf scale, and the balance between flower and foliage. | Standard decorative stems commonly measure approximately 50–75 cm long, with a bloom diameter of about 7–12 cm. The flower, stem, and leaf proportions should remain visually balanced. | Measure at least 10 samples with a ruler. Compare the longest and shortest stems and record the size variation. | Large differences between samples, undersized blooms, or leaves that are much larger or smaller than the flower. |
| Petal Material | Surface softness, flexibility, thickness, edge finish, and resistance to permanent creasing. | Real-touch calla lilies are commonly made with molded PU, PE, TPE, silicone, or a coated fabric-based material. The petal should feel soft and slightly pliable rather than brittle or paper-thin. | Gently bend the petal edge and press the surface for 10 seconds. Check whether it returns to shape without cracking, whitening, or leaving a deep mark. | Strong plastic hardness, sticky residue, uneven coating, cracking at the edges, or a surface that permanently deforms. |
| Petal Shape and Curl | Natural trumpet form, asymmetrical contour, folded edge, and gradual opening toward the tip. | The spathe should form a tapered trumpet shape with a gently rolled edge. Slight variation between flowers is more realistic than identical, perfectly symmetrical petals. | Place 20 stems side by side and compare the opening angle, tip shape, and side profile under neutral lighting. | Flat petals, sharp machine-like folds, identical shapes on every stem, or an unnaturally wide opening. |
| Color Realism | Base color, tonal variation, vein shading, edge coloration, and consistency between petals and leaves. | Realistic colors usually include subtle tonal transitions rather than one solid block of color. White varieties may include a soft green, cream, or pale yellow transition near the throat. | Inspect samples in daylight or under a neutral 4,000–5,000 K light source. Compare the product with approved color samples or digital reference images. | Glossy painted appearance, abrupt color bands, excessive neon tones, visible brush marks, or inconsistent color within one batch. |
| Surface Finish | Matte-to-satin appearance, tactile softness, reflectivity, and visible mold lines. | A convincing real-touch finish is generally matte or softly satin, with limited glare. The surface should not look like thin high-gloss PVC. | Rotate the stem under diffuse light and photograph it from several angles. Check for unwanted bright reflections and molding seams. | Mirror-like shine, oily film, powdery coating, visible seam lines, or inconsistent texture across the same flower. |
| Flower Center and Spadix | Spadix position, color, taper, texture, and attachment to the flower base. | The spadix should be positioned naturally within the trumpet, normally tapering slightly toward one end. The attachment should be secure and visually integrated. | View the flower from the front and side. Gently rotate and pull the spadix to confirm that it does not loosen from normal handling. | Crooked placement, oversized center, detached parts, visible adhesive, or a completely smooth and artificial-looking finish. |
| Stem Construction | Core wire, outer coating, straightness, flexibility, and load-bearing capacity. | A practical decorative stem should contain a bendable internal wire and a continuous outer coating. It should support the flower without collapsing under normal arrangement pressure. | Bend the stem gradually to approximately 30–45 degrees, release it, and inspect for splitting, exposed wire, or permanent buckling. | Exposed metal, hollow stems, loose coating, sharp wire ends, or a stem that cannot hold the flower upright. |
| Leaf Design | Leaf shape, vein detail, color gradient, thickness, and attachment point. | Leaves should show a clear central vein and natural color variation. A typical calla lily stem may include 1–3 leaves, depending on the intended arrangement style. | Check the leaf from both sides and flex it gently. Confirm that the attachment point remains stable after repeated positioning. | Flat printed veins, transparent plastic edges, overly uniform leaves, detached foliage, or a color that does not match the flower. |
| Tactile Performance | Softness, rebound, friction, and resistance to handling marks. | The material should feel slightly yielding and rubber-like while remaining clean and dry. Normal handling should not leave permanent fingerprints or deep creases. | Handle each sample for 2–3 minutes with clean gloves and check for dents, color transfer, stickiness, or surface changes. | Excessive tackiness, oily hands after handling, strong color transfer, or a surface that becomes rough or cloudy. |
| Odor and Material Stability | Chemical odor after opening, odor persistence, and surface changes after storage. | A slight manufacturing odor may occur after sealed transport, but it should noticeably reduce after 24–72 hours in a ventilated area. | Open a sealed carton and evaluate the odor immediately, after 24 hours, and after 72 hours. Store samples at room temperature during the test. | Strong persistent solvent odor, oily exudation, discoloration, surface stickiness, or material deformation during storage. |
| Colorfastness | Resistance to rubbing, moisture, and short-term light exposure. | Color should remain stable during normal indoor display and should not transfer easily to clean white material or damp packaging. | Rub a hidden area with a dry white cloth and then a lightly damp cloth. Inspect samples after 24 hours of indirect daylight exposure. | Visible color transfer, bleeding at the edges, fading after brief exposure, or water spots that cannot be removed. |
| Water and Humidity Resistance | Response to light moisture, condensation, and humid storage conditions. | The surface should tolerate light wiping with a damp cloth. Products intended for humid environments should have sealed joins and no exposed absorbent backing. | Wipe a sample with a damp cloth, allow it to dry for 24 hours, and inspect the color, texture, adhesive points, and stem coating. | Swelling, peeling, water rings, softened adhesive, rust-colored marks, or fabric backing that remains wet. |
| Assembly and Attachment | Connection between bloom, stem, leaves, and internal components. | All components should remain secure during routine arrangement. There should be no visible gaps, loose wires, excess adhesive, or movement at the flower base. | Perform 10 gentle rotations and 10 moderate bends on each test stem. Record any loosened components or visible damage. | Loose flower heads, exposed glue, rattling internal parts, detached leaves, or joints that fail during simple handling. |
| Batch Consistency | Consistency of length, bloom size, color, finish, leaf position, and packaging condition. | For a uniform wholesale order, key dimensions and color should remain consistent. A practical incoming inspection can use a sample of 10–20 pieces per production lot. | Measure and photograph random samples from different cartons. Separate visual defects from acceptable natural variation before approval. | Different color lots in one carton, mixed materials, irregular stem lengths, or a high number of visibly defective pieces. |
| Packaging Protection | Compression protection, moisture control, separation between blooms, and carton dimensions. | Flowers should be protected from crushing and abrasion. Individual sleeves, tissue separation, or shaped inserts are useful for soft-touch petals during transit. | Inspect the outer carton, inner packing, and the most compressed pieces after delivery. Compare damage before and after unpacking. | Bent or crushed blooms, rubbing marks, damp cartons, insufficient inner padding, or excessive empty space that allows movement. |
| Wholesale Cost Evaluation | Unit price compared with material, finish, size, packaging, defect allowance, and shipping terms. | Compare suppliers using the same specifications: stem length, bloom diameter, material type, finish, packing quantity, inspection standard, and delivered cost. The lowest unit price is not necessarily the lowest total cost. | Request a written quotation with sample charges, packaging details, production lead time, shipping terms, replacement policy, and any customization fees. | Unclear specifications, unexplained price changes, no approved sample, hidden packaging charges, or no remedy for defective goods. |
| Pre-Shipment Approval | Final sample match, defect classification, carton count, labels, and inspection records. | Approve a sealed reference sample before mass production. Define acceptable defects in writing and require photographs or an inspection report before shipment. | Compare production samples with the approved reference under identical lighting. Check dimensions, color, finish, attachments, and carton quantity. | Mass production differs from the approved sample, missing inspection records, uncounted cartons, or last-minute material substitutions. |
