High-Quality Material: Industrial powder coating kit is made of silicone rubber. It is sturdy, corrosion-resistant, and provides good sealing. It is not easy to crack and has high-temperature resistance up to 200-300°C. Package Quantity: Includes 110 rubber stoppers in 8 different sizes, ranging from 1/16 inch to 5/8 inch. Colors include red, black, yellow, and blue, suitable for various hole sizes. Plastic Box Packaging: Tapered hole plugs are packed in a plastic box with compartments for different sizes, allowing for convenient use and storage. Wide Application: Solid rubber stoppers are ideal for hole plugging, spraying, coating, paint protection, and blocking transmission, brake, vacuum pipelines, and ports in chemical, machinery, construction, or laboratory settings. Color: As shown Material: Silicone gel Size: 17.60 x 9.91 x 2.59 cm Package Contents: 110 x Silicone Rubber Tapered Plugs (5 red 20x25mm, 5 blue 17x25mm, 5 blue 14x25mm, 10 blue 12x17.5mm, 10 yellow 9.5x19mm, 15 black 6.5x19mm, 25 red 8.7x16mm, 35 red 4.7x16mm) Only the above package content is included; other products are not included. Note: Light reflection and differences in display screens may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.