Coomee Ice Cube Tray for Tumbler Cup 20-40 Oz, 3 Sizes Silicone Cylinder Ice Mold with Lid for Freezer, Easy Fill and Release Ice Cube Maker for Drinks, Coffee, Whiskey, Cocktail (Blue)

Super happy with it after the first use ! Ice lasted all day at work and Into the evening at home. I washed it first before using, and let it sit for a few minutes after I took out of freezer. Zero issue getting cubes out. Definitely easy when you push the middle in slightly and then pop from bottom. Yes you will get a white residue in cup but that happens with any type of ice in a stainless cup.

The quality of this ice cube tray is really impressive. The silicone feels thick, flexible, and durable — not flimsy or cheap like some trays I’ve tried before. It holds its shape well when filled with water, and the cubes pop out easily without cracking or sticking. The mold makes solid, evenly shaped ice that fits perfectly in my 40 oz Stanley tumbler. Overall, it feels well-made and built to last, and I’m very happy with how sturdy and reliable it is.

Works very nice with Cirkul's tumbler. I didn't give 5 stars because the cubes don't come out easily. Excellent way to keep your water cold in any large tumbler.

Using this left an insane amount of silicone residue on the sides of my cup. I could actually feel and taste the silicone particles in the water. Refreshing microplastics!

The item works perfectly. Great fit in the cups. Only “negative” is they are thick &, therefore, take up a space that decreases the amount of liquid. I generally only use the small ice block instead of 2 or all 3 ice blocks for that reason. Great product. With very little downside, if any.

The ice keeps the drink cold in the tumbler and works very well for that. However, I am dismayed that there is a filmy residue every time I use the ice from this mold. I have washed mold in warm soapy water, rinsed and used the mold a minimum of four times but the residue continues. I was at first thinking it would stop after several uses, however it continues. If I use ice from other silicone trays, there is no residue, so I know it is coming from this product.

I really like this ice mold! It has a cute flower pattern in the middle and really keeps my drink cold for a long time. The only downside is that it has a silicone cover so you have to be careful not to overfill it. Other than that, no complaints! Highly recommend!

These are cute but the ice doesn’t come out in one piece that it shows.