🥤UNIVERSAL SPILL-PROOF FOR STANLEY: Worry about wrong size? This upgraded universal straw cover set is suitable for both H1.0 and H2.0 version of Stanley Cup, perfectly solve leak problem. (NOT INCLUDE CUP) 🥤NO MORE LEAK: The straw cover cap prevents drinks from spilling out of the straw; the round leak stopper improves the seal and ensures drinking air can get in; the square anti spill stopper creates a seal and secures the straw. This simple set not only creates a seal but also holds the straw in place. 🥤SAFE MATERIAL: The straw lids for stanley are made of safe food-grade silicone, BPA-free, durable, reusable, environmentally friendly and non-toxic. Has excellent heat resistance and sealing properties. 🥤PERFECT PARTNER FOR STANLEY: This accessory for Stanley Cup kit is portable and convenient, you can carry and use it anywhere. Suitable for various outdoor activities, such as fitness, camping, hiking, going to class or other activities. Available for all ages. 🥤1 SET IS ENOUGH: The package includes Straw Cover Cap*2, Square Spill Stopper*2, and Round Leak Stopper*2. No need to worry about losing accessories, the 6-piece stopper set is enough for your daily use! Silicone Straw Covers Cap, Compatible with Stanley Cup 1.0/2.0 40oz/30oz, Dust-Proof Tumbler Accessories