Preschoolers use a kid friendly power drill to create super cool, spinning chain reactions! Includes drilling board with handle, drill, screwdriver, 9 gears in two sizes, 32 colorful bolts, hand crank, and 10 double-sided pattern cards to copy. Details: Multicolor 15.5" x 9.8" x 8.8" package size For ages 3 and up Contents: Drilling board with handle Drill Screwdriver 9 gears (two sizes) 32 colorful bolts Hand crank 10 double-sided pattern cards