Cheap And Discounts Straw Cover Cap Square Spill Stopper Spill Proof Stopper Set Round Leak Stopper For 1.0 40oz/ 30oz Tumbler Wholesale. Buy Directly From Merchant WUJIU59 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.