Specification: Material: Rubber Plastic Size: For 10mm openings Color: Black, White, Red, Grey, Champagne, Coffee Application: Door&Window Construction Hole, Furniture Stucking Hole, Home Improvement Kits, Automotive Supplies, Stoppers for Glass Vials Safe Bottle & Liquid Culture Jars Feature: High Quality Rubber Material - The rubber plastic plug kits is made of high quality rubber, which is flexible, washable, reusable without deformation, chemical resistance, durable and suitable for long-term using. Perfect Seal - If you want to better seal holes, then these self-healing rubber plug is well worth your purchase. These rubber plugs can better seal holes, cans, bottle, vials which is 10mm openings, stabilize the contents of the end and last longer. Wide Application - This rubber plugs can be applied construction, manufactory, home improvement, automotive maintaining, agriculture, pharmacy in daily life. Packing: 1000 PCS rubber plug kits in plastic sealing bag * 1