High-Quality Material: The industrial powder coating kit is made of silicone rubber. It is sturdy, non-toxic, harmless, and good sealing is not easy to crack, it ensures a long-lasting performance High-Temperature Resistance: Our silicone rubber plug for coating with high-temperature resistance of up to 200?-300?, has strong stability and corrosion resistance Package Quantity: Rubber stoppers total include 110 PCS in 8 different sizes, sizes from 1/16" to 5/8". Color in pink, black, red, yellow, and blue, suitable for many sizes of holes used Plastic Box Packaging: The tapered hole plug packed with a plastic box, divided into areas according to different sizes, more convenient use, and storage Wide Application: Solid rubber stoppers are widely used for hole plugs, spraying, coating, and paint protection, and widely for blocking transmission, brake, vacuum pipelines, and ports in chemicals, machinery, construction, or laboratories Brand Coldairsoap Material Silicone, Rubber Product Dimensions 0.98"W x 0.79"H Color Pink, Black, Red, Yellow, Blue UPC 754191990335 Brand Name Coldairsoap 6059565