What if you could turn any cup, anywhere, any day into a straw cup? Great news – you can! Made from 100% European-grade platinum silicone, this straw lid stretches over a WIDE variety of cups and glasses. When the silicone lid is stretched over a cup, the suction keeps the lid in place making your new straw cup virtually spill resistant. Use it at a restaurant, keep the bugs out of your drink while sitting at the campfire, use it poolside or on the boat – the list goes on. Never be without a lid or straw again! The included reusable silicone straws won't melt in your drink like a paper straw or hurt your teeth like a stainless-steel straw. GoSili reusable straws are translucent, so you can easily make sure your straw is clean! The included straws are standard in length, measuring at 8 inches tall with an opening of 0.6 centimeters. To clean, simply place your silicone lid and straw in the dishwasher. No dishwasher? No problem. Wash your lid and straw by hand or boil to sterilize. Whether you are out at a restaurant or enjoying a picnic in the park with your family – don't forget your universal lid and straw. It will meet your needs, no matter where your day takes you. The GoSili Universal Lid + Standard Reusable Silicone Straw is made for 12 oz., 16 oz., and 20 oz. beverages. On behalf of our planet, thank you for making the choice to waste less, and GoSili.