Give any cup a straw top in seconds!  The Siliskin Straw Top is a universal silicone top that stretches over and grips the top of any size cup instantly making it spill proof.  Silicone suction keeps it in place so it does not pop off while in use.  Reduce your plastic footprint by using this at a restaurant or your favorite coffee shop, keep the bugs out of your drink while sitting at the campfire, use it poolside or on the boat – the list goes on. The included reusable silicone straw 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 see inside the straw and know it is clean! Time to GoSili! 

X-Long is 10 inches long; Standard is 8 inches long