This caster socket is made of plastic material, which can withstand use.Features the plastic material, which has high durability, not easy to deform. Fine workmanship, ensures practicality. This caster socket will make the repair and fix easier and smoother.Features-Color:Black-Material:Plastic-Size:2.50X2.50X2.50cm/0.98X0.98X0.98in- Practical::Thick and tough material to prevent socket form breaking, very practical- :Thickness and toughness materials are used to prevent breakage of sockets- Easy to use:Provides the solid connection when furniture or objects need wheels and fix standard rod fasteners in furniture- Long term use:Adoption of simple and convenient design, this product also can be used for a long time-Safe And Reliable: Simple in structure, easy to use, not easy to deform, you can use it with confidencePackage list: 10 x Caster Socket Sleeves