Silicone Spill Stopper Set Compatible with Stanley Cup 30Oz & 40Oz (1.0 & 2.0) w
4 sets black leak proof stopper, each set contains 4 straw cover, 4 round lid leak stopper, 4 square spill stopper. Made of food-grade odorless silicone, compatible with Stanley Quencher 1.0 and H2.0 FlowState Tumbler 30oz & 40oz.