4M KidzLabs Zero-Gravity Fridge Rover - Magnetic STEM Science Toy for Kids | Wind-up mechanical rover climbs magnetic surfaces; teaches physics and potential energy without batteries for ages 8+

Defy gravity and spark curiosity with the kidzlabs zero‑gravity fridge rover, a fun and educational wind‑up science gadget that climbs vertical magnetic surfaces using mechanical energy and magnets. Kids simply wind the rover’s spring‑powered mechanism and place it on a refrigerator, locker, or other metal surface and watch it “creep” upward as it rolls, demonstrating basic principles of motion, magnetism, and energy transfer. This compact stem activity is perfect for curious kids ages 8 and up who love interactive experiments and hands‑on play. Ideal as a classroom demonstration, party favor, or small gift, the zero‑gravity fridge rover turns everyday surfaces into a fascinating science exploration.