Maven Gifts: Stackable Ice Cube Trays. No-Spill, Easy-Twist Release, Quick-Filling Water Channel. BPA and Phthalate Free. Dishwasher Safe. Set of 4 STACKABLE: Designed to stack on top of one another, these ice cube trays sit flat and save you space. FLEXIBLE AND DURABLE: These trays are durable as well as flexible, twisting and bending for easy release but not breaking. QUICK FILLING CHANNEL: Trays include water channel for even distribution and immediate filling. SAFE: Completely dishwasher safe, BPA and phthalate free. MADE IN THE U.S.A.