Tumbler Ice Mold, Ice Cube Tray with Lid and Bin for 20-40 oz Tumbler Cup, Silicone Ice Cube Molds for Chilling Cocktails, Whiskey, Drinks, Coffee, Tea, Freezer (1, Purple)

So this worked well ice did not last long too thin, I need lots of ice and very cold water. would not recommend

Waste of money. These are so small the largest fits in the bottom of my tumbler. They are also thin walled and melts too fast. Also difficult to release from the mold.

This ice mold goes GREAT with a Simple Modern brand cup or a regular Venti Starbucks cup, but don’t get it for a Stanley. I gave it a 3 star because the product does its job, I love how long the ice does last in an insulated cup and it freezes quick. It is a little hard to get out of the mold when it’s frozen, but the mold is so flexible, it’s not like it freezes firm with the ice. It doesn’t take up much room, it’s smaller than your typical ice tray. It’s an okay buy.

Great product. A bit difficult to get out of the mold but just run under some water & it helps.

The ice cube maker works really well. Using the various sizes of cubes allows the straw to go directly in the middle of your drink. They also last for a long time in your cup.I bought one for all my kids homes. they love them.

Good idea but way to small for Stanley, they get it the way because of the size. Maybe of you have a off brand cup it will fit better but not ok Stanley

This seemed like a great idea, but the ice is extremely hard to remove from the trays and melts really quick throughout the day. If I use regular ice cubes, they last for over a day. I don’t recommend this

We've tried these in a few different cups and it has worked in each one perfectly! Really good to have in 90° weather! Will definitely buy again and for family gifts! Easy to use and clean..