A powerfully fun and meaningful activity for a wide range of children. Use the "power" drill or screwdriver to screw bolts into the 100-hole activity board. Set comes with 120 plastic bolts in 5 colors, 3 interchangeable drill/screwdriver bits, 2-sided wrench and 10 picture/pattern cards. Follow the cards or create original patterns. Watch hand and planning skills develop as this well designed tool provides years of fun and purposeful activity.