To activate your Glam Cube, press the button on the bottom of the cube. You can set the glam cube on a flash, blink or steady light function. Length: 1.62 in. Width: 1.25 in. Depth: 1.0 in. LED Color: Green Batteries: Batteries come ready to use with non-replaceable batteries cubes are permanently sealed for waterproof safety. Note: Glam Ice Cubes are not freezable.