Description Reviews Now you can get just the Silicone PopTop Plugs without the Stainless PopTop lid. Get one as a replacement for one you lost or get a new color without buying the entire lid all over again! The Silicone PopTop Plug will fit both Wide and Small-Mouth PopTop sizes, ONLY. Choose from our colors: Green, Coffee, Blue, and Coral. We make all silicone from FDA-approved silicone. Silicone PopTop Plugs DO NOT FIT our Classic Stainless Steel, Limited Edition, or Classic Silicone Drinking Jar Lids. These plugs only fit in our PopTop Lids. Our Classic Drinking Lids have an 8mm hole on top and our PopTop Plugs fit a 22mm opening.