Gravity Bugs Stocking Stuffers X marks the spot for

X marks the spot for a squeaker surprise

Spice up your swimming routine with the ultimate test of aquatic athleticism

Build models of an industrial robotic arm with a vacuum suction cup gripper

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sent by the Master of Shadows

Gravity Bugs Stocking Stuffers X marks the spot forGoing up! Build a mighty robotic bug that defies gravity to crawl up, down, and all around windows with ease! This motorized, multi legged machine uses an ingenious system of suction cups to walk on smooth vertical surfaces like windows and glossy panels. Assemble the robot to learn about its inner mechanisms, including gears and an electric circuit complete with motor, battery, and switch. Then experiment to see which types of surfaces your Gravity