Kids explore robotics and experiment with STEM as they build and steer their own bionic snake! The full-color guide features step-by-step instructions for assembling the agile reptile. Young engineers put it together…then send it ssslithering in all directions to capture and move the ball! Set includes 38 pieces, plus a 2-speed wireless remote. Assembled snake measures approximately 23" in length. Requires 4 “AAA” batteries (not included).