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

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.

Ice tray works great, the ice lasted all day in my cup.

Love this i use it everyday

It’s nice the ice keeps my Stanley cold for at least a day but the ice is kinda hard to get out of the molds

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.