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!

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!

Product arrived very crumbled. After using twice I had to throw it away; it was leaving my tumbler with a white residue and made the water taste bad.

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.

Look the ice is great and it's a perfect fit in my stanley but it is hard to remove. I suggest leaving it out on the counter for 10 ish minutes so it melts a tiny bit...easier to slide out.