NEW! Silicone tumbler boot. Protect your tumbler with this non slip silicone boot from unwanted scratches, dents and any other damages. It will also help with the unwanted noise that your stainless steel tumbler makes while being placed on a table. Made of high quality silicone, that is durable, soft, flexible and reusable. Fits bottoms of 30-40 oz. tumblers. Diameter: 3 1/4 inch Packaged individually in clear plastic box. Tumbler not included.