need portable and durable chair wheel stopper? If so, take a quick look at this item. Made of , durable and . Simple look design and craftsmanship ensure its popularity and practicality. Multi-functional and useful, can be used for sofa, bed and other furniture. Features - Color: Black. - Material: Silicone. - Size: 8.40X8.40X1.60cm/3.30X3.30X0.63inch. - Note: wheels no more than 4 inches in diameter. - Made by premium silicone material, safe and durable, which could be used for very long time. - This wheel stopper is very easy to install and simple to operate, giving you huge convenience. - cups can be used to sofa, bed and chair, prevents household floor from scratches. - The wheel caster stopper is simple and delicate, excellent and reliable, carefully crafted, not easy to deform, anti-skid and firm. - With enough wheel stoppers for replacement use, can easily meet your different requirements. Package list: 8 x Silicone Furniture Caster Cups