Joie's reusable Silicone Groovy Straw Caps cover the tips of standard-sized reusable straws to keep drinks clean and sealed. Enjoy everyday beverages, smoothies, shakes, and cocktails without dust, bugs, or spills. With 4 different colors, it's easy to identify each individual's drink for everyday meals, entertaining, family gatherings, parties, backyard barbecues, camping, tailgating, and more. They fit standard-sized reusable stainless steel or other metal straws (straws not included). Made from silicone, Joie's Silicone Groovy Straw Caps are sturdy, durable, reusable, and dishwasher safe for a sanitizing wash. Joie, by MSC International, brings a creative side to cooking and entertaining with an original-design approach to unique kitchen gadgets and colorful kitchen utensils, all highly functional kitchen items with just the right amount of whimsy and style.