K'NEX Creative STEM Building Set

K'NEX set with colorful rods and connectors. Includes red, yellow, gray, white, blue, green and orange pieces. The K'NEX Battery Motor is designed to add movement to K'NEX building projects. Here's some helpful information: It's battery-powered, requiring 2 AA batteries. It's a low-speed motor, operating around 34 rpm. It has a switch to control the direction of rotation (forward or reverse). It is compatible with standard K'NEX rods and connectors. It's often used in motorized K'NEX models like Ferris wheels.