Adopting food grade silicone material, this cup leak stopper set is BPA free, lightweight, smooth, burr-free, indeformable, durable, reusable, easy to wash and comfortable to touch. The straw cover can effectively prevent water from overflowing and also prevent dust from entering the water cup. The round leak stopper is installed in the middle of the cup lid for sealing, and is designed with a cross opening design to ensure air entry during drinking water, making drinking water easier. The square spill protector is installed in the straw hole of the cup lid, which not only forms a seal but also fixes the straw. Made of high quality silicone, it is flexible, wear-resistant and durable to use. There are 2 sets(3Pcs/Set) are included. Suitable for the 30oz or 40oz cup. Item Name: Cup Leak Stopper Material: Silicone Features: Food Grade, Transparent, Lightweight Size Details: Cup Straw Cover: 5cm/1.97" (Approx.) Round Leak Stopper: 2cm/0.79" (Approx.) Square Spill Stopper: 2cm/0.79" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 2 x Cup Straw Covers 2 x Round Leak Stoppers 2 x Square Spill Stoppers