HABA Marine World Discovery CubesHABA Marine World Discovery Cubes The fantastic, machine washable marine world soft discovery blocks offer much more than just stacking. A rattle, mirror foil, clattering sound effects and crackling foil stimulate baby's senses and are an inspiration to play and explore. The bright colors and different materials and textures also open little ones to tactile and visual discovery. Each cube measures 3" x 3". Age: 6 24 Months