Set of 4 Push Out Ice Cube Trays with Flexible Rubber Bottoms, Rectangular and Round Shapes Simply push bottom to release ice Flexible rubber bottoms (PUSH OUT ice cubes, DON'T TWIST) Rectangular and round shape. Blue and green colors Package includes total of 4 trays. Approx. measures 11" x 4.5" Rectangular shape makes 15 ice cudes, round shape makes 21 ice cubes