Sunnytech Mini Newton’s Cradle Balance Balls Science Desk Decor Decompression Psychology Toy WJ035

Key features

• PHYSICS EDUCATION---- This Newton’s cradle balance ball Toy is a good practice of physics in action demonstrates the principles of kinetic energy and conservation of momentum.
• TIME KILLER---- When you get bored, it is a perfect desk toy to kill time, relieve stress and tune out boring coworkers.
• SUPERIOR QUALITY AND MINI SIZE---- Durable black wooden base, nylon strings, metal balls, stainless steel frame. Size: 90 mm*75 mm*90 mm / 3.54 in*2.95 in*3.54 in . please measure the size with ruler instead of image the size in mind. This is a mini Toy.
• ENTERTAINMENT---- Pull back one or more of the balance balls, release them and the same number of balls will swing up on the opposite side. Fascinating to watch!
• AMAZING GIFT AND DECOR---- It’s a classic desk accessory is art-in-motion. This cool desk toy will be a good icebreaker when you lay it in your office desk or your home desk.