This exciting monster truck is specially designed for boys aged 3–7, allowing kids build their own truck while developing hands-on skills and confidence Enjoy DIY Fun: Each toy truck can be easily take apart and assemble with the electric drill (2 AAA batteries required, not included) and hand drill. Monster Truck Toys Set: Includes 3 take-apart monster trucks with cool shark and dinosaur design, 1 electric drill, 2 drill bits, 3 hand screwdrivers, and a storage box. Every build encourages fine motor skills, hand-eye coordination, creativity and logical thinking, it's great STEM building toys for kids ages 4-8 Super Cool Push-Go: No batteries required for the off road trucks!