... , noiseless castor and other.Plastic Deck: PP and other materials. Trait: Lighter, Silent, gentle, anti-corrupt, skidproof. Handle: SPCC ... Seamless steel tube, thickness:2.0mm. Trait: Beautiful, Durable. SEION Castor: The housing is made by ... Nylon and other materials. Trait: Anti-corrupt, good tenacity, Unique aesthetic feeling. Castor Bearing: ...