Each tray makes 21 round-shaped ice cubes and will make serving icy cold drinks and breeze!Easily fits most sports bottles. Flexible bottom for easy pop out. Top rack dishwasher safe with Silicone grips for easy handling. Dispense ice cubes easily with this pop-out ice cube tray. Simply press the flexible pads on the base of the tray and ice cubes will release with ease without and mess. Cubes are about 1-inch in diameter when done. Great for summer parties and birthdays!