: The industrial powder coating kit is made of silicone rubber. It is strong, corrosion-resistant, has good sealing properties, and is not easy to crack. It can withstand high temperatures up to 200-300°F. PACKAGE QUANTITY: Includes 110 rubber stoppers in 8 different sizes ranging from 1/16 inch to 5/8 inch. COLORS: Red, black, yellow, and blue, suitable for holes of various sizes. PACKAGING: The tapered hole plugs are packed in a plastic box with compartments divided by size for convenient use and storage. WIDE RANGE OF USES: Solid rubber plugs are used for hole plugging, spraying, painting, and paint protection. They are widely used for blocking transmission, braking, vacuum pipes, and ports in chemical, machinery, construction, laboratory, and other industries. MATERIAL: Silicone SIZE: 17.60 x 9.91 x 2.59 cm PACKAGE CONTENTS: 110 x Silicone Rubber Cone Plugs (5 pcs red 20x25mm, 5 pcs blue 17x25mm, 5 pcs blue 14x25mm, 10 pcs blue 12x17.5mm, 10 pcs yellow 9.5x19mm, 15 pcs black 6.5x19mm, 25 pcs red 8.7x16mm, 35 pcs red 4.7x16mm). The package includes only the items listed. NOTE: Light reflections and different monitors may cause slight variations in the color of the item shown in the picture compared to the actual item. Measurement allowance is +/-1-3 cm.