BonneChance Stanley Cup Accessories Set Including 6 Pcs Silicone Spill Proof Stopper, 2 Straw Cover Cap for 9- Straws, 1 Boot for Tumbler (eucalyptus), 30oz, 40oz, 10 Mm

The 2 pieces for the straw to go in to prevent leaks were not sent. Everything else is great.

Very useful i recommend

The Stanley Cup Accessories Set in Eucalyptus is the perfect complement to your Stanley 40oz & 30oz tumblers, offering both functionality and style. This set includes 6 silicone spill-proof stoppers, 2 straw cover caps for 9-10 mm straws, and 1 silicone boot, all designed to enhance the performance and longevity of your Stanley Cup. The spill-proof stoppers are ideal for preventing leaks, making them perfect for on-the-go use. Whether you’re in the car, at the gym, or just relaxing at home, these stoppers ensure a secure, spill-free experience. The straw cover caps offer an extra layer of hygiene, keeping your straws clean and protected from dust or dirt when not in use. The silicone boot provides a durable, non-slip grip for your Stanley tumbler, protecting the base from scratches and offering added stability. The sleek Eucalyptus color gives this set a modern, stylish look that perfectly matches your tumbler, while the silicone material ensures a flexible, long-lasting accessory that won’t wear out easily. Highly recommended for Stanley Cup owners who want to elevate their drinking experience, the Stanley Cup Accessories Set offers thoughtful, practical features that keep your tumbler clean, secure, and looking great. It’s a must-have set for anyone who values convenience, durability, and style.

These work really great to prevent leaks. Using all of this, I can hold my cup upside down without it leaking! Super cute, super great! Good silicone material too!

Definitely recommend this to anyone who is clumsy like myself and spills their stanley (or has a toddler who spills it for them). Installing the stoppers was a breeze. One thing I noticed that I see many who review are having an issue with is the vacuum it creates when drinking, and I've found the solution (which is why I'm worrying a review). Before you start drinking, rotate the thing on the lid that has the lion logo and where the straw USED to go through and this opens up a slit on the round rubber stopper on the underside of the lid. You can try it before replacing the lid to see what I'm talking about. But just remember when youre done drinking, to rotate the thing on the lid back into place to seal the stopper again. Hope this helps 🤗