1.
Scientific Design: Pendulum balls perfectly lined up for 50s+ swing, demonstrating momentum and energy conservation.
2.
Superior Quality: Made of 8mm chromed metal steel bar, 20mm steel ball, high-impact nylon, and ultra-thin nano technology.
3.
Wide Application: Can be used as stress-relief desk toy, teaching aid, or family activity toy to inspire creativity.
4.
Exquisite Packaging: Individual wrapping paper and foam shockproof material, perfect for various gift occasions.
5.
Warranty & Notice: 1-year warranty with replacement parts, includes extra ball and cleaning cloth, messages replied within 12 hours.