Hole Plug:Plug design can better fit the smooth surface, easy to use and not easy to fall off
Possible applications include waterproof plugs, seals, plugs for test tubes, rubber bulkheads, caps, cylinder plug heads, and threaded rubber plugs.
Size: Silicone bottle seal plug about 1.04x0.55"(26.5x14mm), 1.18x0.55"(30x14mm), 1x0.5"(25.5x13mm), 0.98x0.53"(25x13.5mm), 0.78x0.5"(20x13mm)
20PCS 5 Sizes: Contains 20PCS white silicone stopper of different sizes, inner diameter is 21/64 inch 15/32 inch 25/64 inch 9/32 inch 1/4 inch, a large number to meet your daily needs
Waterproof Material: Bottle seal plug made of silicone, good sealing of waterproof and dustproof