Description: 【Uses】Silicone spillproof stopper set, exquisite craftsmanship and precise dimensions, effectively preventing spills and dust. 【Spillproof】The straw tips cover can prevent beverage from spill from the straw and dirt from entering, square straw plug can seal and secure the straw, round leakproof plug is used to improve sealing. 【Durable Material】Spill stopper is made of high quality silicone, heat resistance, good sealing performance, durable and reusable. 【Easy to Install 】Spillproof stoppers is compact and lightweight, easy to install and portable, perfect for outdoor activities. 【Package Included】2 Straw Cover Cap, 2 Square Spill Stopper, 2 Round Leak Stopper. Specification: Material: Silicone Size Chart: Round Diameter: 2.6cm/1.02inch Height: 1.8cm/0.71inch Square Length: 2.6cm/1.02inch Width: 1.6cm/0.63inch Straw Cover Length: 6cm/2.36inch Package Includes: 2 Straw Cover Cap 2 Square Spill Stopper 2 Round Leak Stopper(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.