Anti-Slip Silicone Boot For 40 Oz Stanley Tumbler

This silicone boot for Stanley 40 oz quencher can avoid dent, collision, and scratches, and reduce the metal collision sound. Made of soft and stretchy silicone, reusable and durable, the perfect silicone cup bottom protector won't fall off easily. Before installing the silicone boot sleeve on your water bottle, make sure the bottom of the bottle is clean, then insert the water bottle into the sleeve until all the air is squeezed out