Insert a translucent bolt, use the power drill to drill it in, and watch as your dynamic creation glows from the inside. Then play music, sing, or clap your hands, and the lights will dance along to the sounds you make. Understanding patterns is essential to reading and mathematics. Design & Drill Brightworks develops eye-hand coordination, cognitive, and fine motor skills, spatial awareness, creative thinking and problem-solving. Includes 50 bolts in five translucent colors. See-through power drill features LED light and comes with two bits-socket and flat tip. Requires six AAA batteries, not included. Light-up activity board measures 9″L x 9″W.