Laser Pegs® Dragon is the ultimate kit and includes a base and 225 Laser Pegs construction parts to build 57 pre-designed models or whatever your child’s mind can imagine. This is the first unique toy construction set in the universe in which each piece feeds the next piece low voltage current. Create with Light® and enjoy the ultimate toy for kids. You and your child can design and build anything you want and use them lit up or turned off. Once one peg is connected to a power source, it illuminates any other peg it is connected with, making this a very creative and fun construction set. Creatively construct models or design your very own creation. A high quality LED will run about 100,000 hours, which is equivalent to staying illuminated non-stop for 11 years. Therefore, each piece has a very long life expectancy. The batteries supply the toy model’s current, however, the length of time is determined by how many piecesare attached to the power base. If you have 70 pegs on one base, the batteries will last about half as long compared with 35 pegs. You may add anAC/DC power adapter sold on the Accessory Kit web page. Create with Light and enjoy the ultimate toy for all ages. Use 3 AA batteries or an AC adaptor to power up your power base – and watch these remarkable Pegs light up one by one Laser Pegs can connect to LEGO® to create imaginative designs.