| Primary Plastic Material | Food-contact or general-purpose polypropylene (PP) is commonly suitable; ABS may be selected when higher rigidity is required. | Material selection affects stiffness, impact resistance, weight, surface finish, and recyclability. | Applicable chemical-compliance requirements in the destination market, including restrictions on hazardous substances. | Request the material grade, safety data, declaration of compliance, and a sample from the intended production material. |
| Rack Length | Typical retail products are approximately 380–500 mm long, depending on the tile set and player format. | The rack should support the complete tile row without excessive overhang or crowding. | No single global rack-length standard; use the target tile count and tile dimensions as the design basis. | Measure the usable support length and test it with the largest intended tile size. |
| Rack Height and Width | A practical reference range is approximately 25–45 mm high and 25–45 mm wide, subject to the profile design. | Correct proportions improve visibility, hand clearance, table stability, and storage efficiency. | Dimensional tolerances should be defined on the approved technical drawing. | Approve a dimensioned drawing showing overall size, usable groove, and tolerance limits. |
| Tile Groove Compatibility | Specify groove width and depth from the actual tile sample; allow sufficient clearance for easy placement without excessive looseness. | A mismatched groove can cause tile tipping, difficult removal, or unstable rows. | Product-specific engineering requirement rather than a universal international standard. | Conduct a fit test using minimum- and maximum-size tiles from the production specification. |
| Edges and Corners | Use rounded or deburred edges with no sharp flash, burrs, sink marks, or exposed molding defects. | Smooth edges reduce hand-scratch risks and improve perceived quality during repeated handling. | If sold as a toy or children’s product, assess relevant mechanical and physical safety requirements such as EN 71-1, ASTM F963, or ISO 8124-1, according to the destination market. | Perform visual inspection and hand-feel checks on production samples; retain inspection records. |
| Structural Strength | Define a load and deformation requirement based on the full tile row, repeated handling, and expected stacking conditions. | Adequate rigidity prevents bending, cracking, and loss of stability during normal use. | Use a documented internal compression, bending, and repeated-use test; apply toy mechanical testing where legally relevant. | Test samples after conditioning at normal room temperature and, where relevant, after heat and cold exposure. |
| Surface Finish and Color | Choose matte, semi-gloss, or textured finishes according to handling needs; define color using an approved physical sample or color reference. | Finish influences grip, scratch visibility, cleaning, appearance, and color consistency between batches. | Color and gloss are normally controlled by the buyer’s approved master sample and inspection criteria. | Check color, gloss, texture, contamination, and visible flow lines under consistent lighting. |
| Chemical Compliance | Confirm compliance with destination-market restrictions for substances such as restricted heavy metals, phthalates, and other regulated chemicals. | Different markets impose different chemical, labeling, and documentation obligations. | Examples may include REACH requirements in the European market, CPSIA requirements for covered children’s products in the United States, and applicable national regulations elsewhere. | Obtain a current third-party test report or supplier declaration that matches the actual material, color, and product version. |
| Customization Options | Possible options include length, groove profile, color, texture, surface marking, packaging format, and accessory integration. | Customization can improve market fit but may increase tooling, approval, minimum-order, and quality-control requirements. | Use a controlled technical drawing, approved sample, and change-management record. | Confirm tooling ownership, revision number, sample approval, minimum order quantity, and color tolerance before production. |
| Packaging Protection | Use individual or grouped protection with separators where needed; prevent abrasion, deformation, contamination, and movement inside the carton. | Packaging must protect appearance and geometry throughout handling, storage, and international transport. | ISTA 3A may be used for packaged-product distribution testing when its scope and test conditions match the shipment profile. | Specify carton dimensions, gross weight, inner quantity, cushioning method, pallet pattern, and drop-test criteria. |
| Shipping Efficiency | Prioritize nesting or compact stacking where it does not create scratches, permanent deformation, or difficult unpacking. | Efficient packing can reduce shipping volume and handling cost while maintaining product protection. | Calculate carton utilization and verify the final packed dimensions and weight before quotation approval. | Compare units per carton, cubic volume, gross weight, pallet utilization, and estimated transport mode. |
| Labeling and Instructions | Include required product information, material or recycling marks where applicable, country-of-origin information, and safety wording required by the destination market. | Correct labeling supports customs clearance, consumer information, traceability, and regulatory compliance. | Requirements vary by country, product classification, age grading, and sales channel. | Approve artwork and translations before mass production; verify barcode readability and carton marks. |
| Quality-Control Plan | Use incoming-material checks, first-article approval, in-process inspection, final sampling, and packaging inspection. | A documented inspection plan reduces variation in dimensions, color, finish, quantity, and packing. | Sampling may be based on an agreed acceptance-quality limit and a defined inspection level. | Agree on critical, major, and minor defect definitions, sampling quantity, inspection method, and corrective-action procedure. |