2 Inch Black Silent Stemless Caster, Furniture Casters, Replacement Swivel Chair Accessories, for Office Chair Casters…$14.18
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★ This is a kind of elastic material resistant to wear and temperature. The tread with special coating can protect the floor from scratches and other damage that can be caused by traditional casters.
★ Easy to install, whether the wheel is threaded rod or circlip type, as long as the rod length is 23mm to 26mm, and the piston diameter is 8mm, you can use this wheel without rod. Line up the holes and press them in.