As part of the award-winning Design & Drill line of toys, kids can now learn to use a working socket wrench to attach colorful bolts to 4 construction projects. Flip the switch to use wrench for removing bolts when completed. Includes a boat, robot, race car and rocket which can be filled with bolts and then used in pretend play. Strengthens motor planning, hand skills, and endurance while encouraging creativity. Add additional power drills for play by 2 or more individuals.