Ice Tray
I love the tray. Use these ice cubes all the time.
The Flaskap Ice Tray makes four 2.5-inch diameter ice spheres that are designed to melt slowly so your drink stays cold, refreshing, and pure. A single ice ball fits perfectly inside your 20oz tumbler. Drop in one and be done. Composed of food-grade materials, the flexible top allows for effortless access to your ice after freezing. Make regular ice for your drink on the rocks, or treat yourself to flavored ice for creative cocktails. Whatever your preference, this is the drill: less refill and more chill.