






🛡️ Sip in Style, Spill No More!
The DUNLAGUE Silicone Spill Stopper Set offers a leakproof, spillproof upgrade for your Stanley Quencher H2.0 30oz & 40oz tumblers. Made from food-grade, odorless silicone, this 2-pack includes round and square stoppers plus straw covers, delivering 360° protection against spills and dust. Dishwasher and microwave safe, it combines practical durability with a chic Almond Rose finish, backed by a lifetime warranty.














| ASIN | B0DFXTLYX4 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #4,076 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #59 in Tumblers & Water Glasses |
| Brand | DUNLAGUE |
| Color | Almond Rose |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,613) |
| Date First Available | September 22, 2024 |
| Finish | Non Stick |
| Included Components | 2*Round Stopper, 2*Square Stopper, 2*Straw Cover |
| Is Dishwasher Safe | Yes |
| Is Microwaveable | Yes |
| Item Package Quantity | 2 |
| Item Weight | 1.16 ounces |
| Item model number | SS-37 |
| Manufacturer | DUNLAGUE |
| Material | Silicone |
| Number of Pieces | 6 |
| Part Number | SS-37 |
| Pattern | Solid |
| Product Dimensions | 1.1 x 1.1 x 0.62 inches |
| Shape | Round |
| Size | 2Pack |
| Special Features | Leak Proof, Spill Proof |
| Style | Casual |
| Warranty Description | Lifetime Warranty |
J**R
Works well
Perfect! I love my cup but hate that it leaks. I’ve had it leak in some not so great places. Using all three parts makes it leakproof. I didn’t want to buy another cup.
H**H
Actually makes your Stanley Leakproof!!
I’ve now bought three sets of these - one for my Stanley, and one for two different friends because they were complaining about their Stanleys leaking too. And it WORKS. like amazingly well. I love all the color options, they match any Stanley. It’s super easy to use and straightforward, and it fits great on my cup.
L**C
Good quality seal set
I adore these stoppers. They fix what the premium cup “brand” couldn’t or wouldn’t. Stops all leaks. Fit well. Works well. Nice color. They will create a much stronger suction when drinking from the straw. I use a silicone straw and will gently press the straw away from the seal wall in order to let a small amount of air flow through to help offset the internal pressure. These seals are awesome.
D**.
Leak proof
Fit perfect and is definitely leak proof once installed correctly. Easy to clean also.
S**N
Stops the spills but does make it hard to drink out of the cup
I got the Fluted Wisteria Shine cup for Christmas. It doesn't keep anything cold. My husband said it was because of the holes in the cup. I bought these hoping they would help. They don't. The cup isn't as described. It's a pretty cup but not very useful :(
S**H
spill stopper
perfect addition to add to stanley cup. straw covers work great
A**A
Great value
When it comes to sealing perfectly these are excellent. Totally leak proof.
J**R
Disappointed
Nice try but my Stanley still leaks. When I added the piece in the straw side I could hardly get any water into the straw. Edit: The company reached out and sent me a new set at no charge. Really great customer service. I think I am more disappointed in the Stanley cup.
Ö**E
Sadece içerken hava akmadığı için pipeti eğerek içmeye çalışıyorum ama gayet koruyucu dökülmüyor
P**O
No se ajusta al tamaño del termo para el que supuestamente fue disrñado
U**!
No straw cover in the brown box, only in the white one
Y**A
جيد
J**O
The cover serve it's purpose. No more leakage.
Trustpilot
2 weeks ago
3 weeks ago