? Design For Toddlers & Preschoolers &Kids: Only 0.2 inch inside diameter of straws design for kids who will choke by wide straws. Soft biteable unbreakable Silicone straws apply to Kids who like to bite straws. ?Design for any kid??s cups and Cocktails, Coffee: Only 0.31 inch outside diameter of straws match with Tumbler lids. 5.7 inch length straight straws for 10 oz Yeti rtic tumbler , Cocktails, Coffee, Small Glasses and Cups. ?Reusable FDA FOOD GRADE SILICONE Kids straws: FDA approved, BPA Free, eco- friendly, Non-Toxic, Non-Plastic Taste. ?Easy to clean:0.2 inch Diameter of standard straws brush Perfectly match with 0.2 inch inside diameter kids straws. It is dishwasher safe but do not put into microwave. ?Design FOR ANY OF DRINKS: Milkshake, Juicing vegetables,. Milk Don??t worry about the hot water and frozen cold drink when the silicone straw is inside the cup. It can bear high temperature water and frozen drinks.