Your child's creativity will take off with these exciting building blocks that incorporate LED lights. This set includes instructions plus everything you need to build 12 different types spacecrafts, or you can build your own designs. Laser pegs add bright, colorful light to their creations. Plastic and wire. Ages 5+. 12-in-1 Galactic Cruiser Kit includes instructions to build 12 different types of galactic ships. Includes 115 translucent neon pieces that glow when the LED bricks are added and work with other building bricks of the same size. Power switch can be set to on, off, or flashing mode. Req. 3 "AAA" batteries (sold separately). Approx. 10"L x 9"W x 2 1/4"H when assembled.