MULTIPURPOSE - Our silicone rubber stoppers are great for lab, industry, office, and daily use. They are suitable for workers, chemists, teachers, etc.WHAT YOU GET - The package comes with 15pcs silicone rubber stoppers. The bottom Diameter is 7/16-inch, the top diameter is 43/64-inch and the height is 0.98-inch.RELIABLE MATERIAL - This tapered plug is made of silicone rubber, which has good heat resistance, electrical insulation, chemical stability, and acid and alkali corrosion resistance. It can withstand temperatures up to 600 degrees Fahrenheit (315 degrees Celsius) for short periods of time.SPECIAL DESIGNED - This plug has a conical design, which is specially designed to protect holes or threads in powder coating, painting, electroplating, anodizing, sandblasting, etc.KINDLY NOTE - Please check the product's size carefully before ordering it. √MULTIPURPOSE - Our silicone rubber stoppers are great for lab, industry, office, and daily use. They are suitable for workers, chemists, teachers, etc √WHAT YOU GET - The package comes with 15pcs silicone rubber stoppers. The bottom Diameter is 7/16 -inch, the top diameter is 43/64 -inch and the height is 0.98 -inch √RELIABLE MATERIAL - This tapered plug is made of silicone rubber, which has good heat resistance, electrical insulation, chemical stability, and acid and alkali corrosion resistance. It can withstand temperatures up to 600 degrees Fahrenheit (315 degrees Celsius) for short periods of time √SPECIAL DESIGNED - This plug has a conical design, which is specially designed to protect holes or threads in powder coating, painting, electroplating, anodizing, sandblasting, etc √KINDLY NOTE - Please check the product's size carefully before ordering it ASIN B0BN9QR94P Item Weight 2.78 ounces Manufacturer YOKIVE Package Dimensions 4.92 x 3.35 x 1.38 inches