HASTHIPHASTHIP® 4Pcs Kawaii Straw Lids Sanrio Series Drinking Anti-Lost Kids Universal 10mm Straw Lids Straw Cap for Stainless Steel Straw, Straight(Cup NOT Included)

The boot fits the cup perfectly. Good quality. Straw covers were also good and very cute.

You get 4 piece out of which hello kitty and kuromi were little loose for my stanley

Very cute ! You. Need to buy this product for your Stanley ! Fits perfectly on the straw and it is definitely leak proof it is also very easy to use and amazing quality. It is definitely needed in a Stanley

Priced to high not great as it cble /straw that holds comes out easily.DO NOT BUY THE PRODUCT QUALITY IS NOT WORTH THE PRICE THEY DON'T TAKE RETURNS

So I bought this adorable Hello Kitty straw closer thinking, “Oh cute, I’m quirky.” I didn’t know I was buying salvation. One day, I looked at my precious 5-liter water bottle and saw a spider—the exact size of the straw hole—sitting there like it paid rent, spinning webs like Charlotte on a caffeine bender. I stared. It stared back. The universe paused.Since that day, I’ve never left that bottle unguarded. This tiny piece of plastic is the only thing standing between me and an unspeakable protein smoothie I never asked for.Thank you, Hello Kitty. You may be a fictional feline, but today, you are my frontline defense.

To big of a straw size with the Stanley Cup I have

Nylon straw lids looks nice and useful

Over all decent product, looks nice , but the part which you put on the straw is very thin and may break if force is applied .