Spill-Proof Silicone Accessory Set for Stanley Cups - Includes Straw Covers, Round and Square Leak Stoppers - Anti-Dust Tumbler Accessories

These are perfect and they work. They work a little too good and I can't grab them out with my small fingers. I make my boyfriend take them out before washing. But this thing is seriously waterproof. If you drop it in the car and it rolls on the ground, it ain't spilling! Carrying way too much and your drink is tilted to the side? It ain't spilling! Only minor nuisance is when you're washing the little pieces and you might not find where you put them to dry. For the longest time I could not figure out where that big circle piece goes but it goes in the middle on the bottom of the lid.

I use this everyday!! Love the fit on my straw. When I have the whole set on it seals the cup well!! Some of my Stanley’s are weird and don’t let me drink with the inside seal so I don’t always use it(I think it’s because they might be off brand) I love the design and I’ve been using this kit for a while now and it’s still so good!! I thought I lost a piece in the dishwasher and I would’ve totally bought again if I couldn’t find it!

Works really well, kept my cup from leaking.

Every time when I refilled my water and drank out of it from the straw , the middle round part always came off and dropped inside my water. I don’t know why really. I thought I didn’t put it in the right way, but it happened so many times after I put it back in and it came off again. The straw part was excellent it didn’t leak at all, but that middle part is bothering me.

Great value

Worked perfectly but I do have to tell you to twist the Stanley patch or thing with the logo on the top you can twist it sideways then but the non spiller thing near the top and then twist it back.

You can't close the lid correctly or it will still leak. It also creates suction when try to drink a soda. Water works just fine.

Was a little complicated to put together but it’s good not completely spill proof but will only drop a few drops of water if tilted over

Don’t bother. The inside stopper falls off. The insert for the straw falls in.

Arrived quickly, and worked well! Yay, no spills!!

Not good

منتج جيد جدا

Still leaks and now I’m drying my mattress with a Dyson