Tedcotoys School Children Activity Amazing Electric Top by TEDCO Amazing Electric Top Build Your Own Scientific Spinning Top Learn the PHYSICS OF ROTATION law Press N Spin to the Target Requires 1 x "AA" battery, not included Printed Box Size: 14.0 x 19.0 x 7.0cm Actual product size (approx): 14 x 20 x 16cm Product Weight: 0.82KG Recommended Age: 8+