Straw Cover Cap Compatible with Stanley 40/30 oz Tumbler with Handle Straw Topper for Stanley Cup Accessories 10mm - 2 Packs - Green Cactus 10mm Straw Covers: These straw covers are compatible with stanley tumbler 10mm straws. Creative cartoon shape, cute and very decorative. The perfect gift for friends and family. Food-grade silicone: Made from premium quality silicone, these protective silicone are not only durable, but also safe and reusable. Straw Cover Cap is made from premium food-grade silicone, providing you with a premium and safe drinking experience. you can enjoy peace of mind knowing that your health is always a top priority. Straw-friendly: The Straw Cover Cap is compatible with straws less than 0.39" / 10mm and 0.27"/0.7mm diameter. Our Mini Cup styling delicate and cute, more suitable for Stanley cup. Share it on social media to let more people's likes and envy it! Dust-proof: The straw cover can stop debris and dust from entering through the straw. Easy to install: Our designed for stanley 40/30 oz tumbler straw covers cap is incredibly easy to install. These accessories can be easily inserted and press it down firmly. It used without any hassle or difficulty. Whether you're traveling or using it in daily life, the tumbler accessories will keep your drinks inside the cup and surroundings mess-free.