Stanley cup owners, this spill stopper set is about to change your life! If you're tired of your tumbler leaking in your bag or car, these silicone covers create a perfect seal that actually works. You get 9 pieces total - 3 square stoppers, 3 round stoppers, and 3 straw covers that fit securely over your straw to keep dust and bugs out. Made from food-grade BPA-free silicone that's soft, durable, and dishwasher safe for easy cleaning. The thick construction prevents slipping and provides 360° spill protection so you can confidently toss your Stanley in your bag without worrying about leaks. Installation is super simple - just press them firmly into place and you're good to go. Important note: these ONLY work with Stanley Tumbler 2.0 in 30oz and 40oz sizes (not version 1.0), so double-check your cup before ordering. The white, pink, and black colors look cute on any Stanley, and they make awesome gifts for fellow Stanley enthusiasts. Seriously, if you carry your Stanley everywhere like most of us do, this affordable accessory eliminates the one downside of these amazing tumblers. No more ruined bags or sticky car cup holders - just leak-free hydration on the go!