Tcamp Ice Mold for 30-40 oz Tumbler Cup, Silicone Ice Cube Tray With Lid and Bin for Freezer, Ice Ring Ice Maker for Chilling Cocktails, Whiskey, Drinks, Coffee, Easy Fill and Release (Black)

Works well in my Hydroflask cup. Last a long time keeping the liquids cool. A bit difficult to remove the ice rings from the mold. Does do away with the issue of a straw getting obstructed by a clump of ice cubes.

Great ice silicone for cups and a good price. The ice holds up for about 6 to 7 hours for me but it’s really based on what type of cup you have. I like that it came with a container so water won’t get everywhere in the freezer. My only issue is with the removal, it’s easy to remove but it’s gonna hurt your hands because of how cold it is. You might need to break off some ice at the bottom and top to get it out. Just a heads up in case you need to do this before going somewhere, it may take more than 5 minutes if you’re very sensitive to cold things.

Cute color, the holder is good quality, the ice try its self is good also. Only issue is getting the ice cubes out due to the cold but that's because its ice! Lol recommendation don't fill them to the top of the center allow some room for movement. Would recommend! I have a 30 oz stanley

The ice tray works good, like the 3 size cubes. Easy to use

Got this for my mom who loves her cup to have more ice than water. The ice fits great into the cup, but it is hard to get them out of the mold.