01 / ConstructionCore and outer material
Identify solid foam, hollow-core or layered construction; request the proposed material name and assembly. EVA, EPP and polyethylene labels describe material families, not equivalent firmness, odor, surface feel or durability.
02 / DimensionsDiameter, length and tolerance
State inches or centimeters and the measurement points. A 12-inch compact roller, an 18-inch general format and a 36-inch full-length format serve different pack and use requirements; figures here are examples, not stocked models.
03 / SurfaceSmooth, patterned or profiled
Provide a surface reference and acceptable alternatives. Texture geometry affects molding, cleaning and user feel, but no recovery or therapeutic outcome is claimed without exact-item evidence.
04 / CartonPieces, packs and freight scope
Give quantity in pieces or sets, individual-pack requirements, carton marking and US destination. Compare unit price only after samples, printing, packaging, tooling, freight and exclusions use the same basis.