Description: Premium MaterialMade of silicone material, which is safe, reusable, leakproof and anti-dust. It can be used for a long time without deformation.Good heat resistance and sealing performance. Easy To Install And CleanOur spill proof stoppers is compact and lightweight, easy to install and portable, making it perfect for outdoor activities. Hand washable and dishwasher safe. Package ListYou will receive 2 pieces straw cover cap, 2 pieces square splill stopper, and pieces round leak stopper. These stoppers set will help you solve the leakproof problem of bottle. Fine WorkmanshipSpecially designed for 40 oz and 30 oz cup 1.0, with exquisite craftsmanship and precise dimensions, effectively preventing spills and dust. Spill ProofThe straw tips cover can prevent beverages from spill from the straw and dirt from entering. The square straw plug can form a seal and secure the straw. The round leak proof plug with an open design is used to improve sealing. Specification: Material: silicone Color: white Feature:spill proof, reusable Size(approx.):(L x W x H)12 x 8 x 1cm/4.72 x 3.15 x 0.39inch(package) Package Included: 2 Pcs x Straw Cover Cap 2 Pcs x Square Spill Stopper 2 Pcs x Round Leak Stopper Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 1-2 cm differences due to manual measurement.