6 Pcs Rubber Stoppers for 30-31 mm Black Hole Soft and Flexible Silicone Stoppers, T-Shaped Hole Plug with Box

The silicone rubber plug has the following dimensions: Total height: 14.4 mm/0.57 inches; Top diameter: 37.6 mm/1.48 inches; Mounting hole diameter (bottom diameter): 31.3 mm/1.23 inches; Hole inner diameter: 21 mm/0.83 inches; Suitable for a hole from 1.18 1-31 mm/1.18-1.22 inches; Package includes: 6 x silicone caps, 1 x box Silicone stopper is used to seal laboratory vials or tube holes in kitchen, home, etc., soft and flexible, easy to fit most holes. The silicone hole plug is made of soft and elastic silicone, durable, not easy to crack, shrink, harden, break, and can withstand high temperatures up to 600 degrees Fahrenheit (315 C) in a short time and can resist corrosion; T-shaped plugs provide good sealing performance and have great waterproof and dustproof effects. The hole cover is easy to install and remove, no tools required, just select the appropriate size plug and push it into the hole. Please check the size carefully before ordering.