Sunnytech Mini Newtons Cradle Balance Balls Science Desk Decor Decompression Psychology Toy WJ035

100% SATISFACTION GUARANTEE—-We're so confident that you'll agree our model is the best that we're offering a 30-Day DARE TO COMPARE Money Back Challenge! Be sure you receive an authentic Sunnytech with our logo to ensure 1-year 100% Satisfaction Guarantee.ITS NOT A BIG DEAL ITS WORTHY FOR YOU TRY. DONT WORRYWE STAND BESIDE THE PRODUCT. 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.TIME KILLER—- When you get bored it is a perfect desk toy to kill time relieve stress and tune out boring coworkers. Manufactured by Sunnytech. 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! PHYSICS EDUCATION—- This Newtons cradle balance ball Toy is a good practice of physics in action demonstrates the principles of kinetic energy and conservation of momentum. AMAZING GIFT AND DECOR—- Its 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. ATTENTION: this listing has been organized many negative reviews from competitor. We have collected evidences and report to amazon for this extreme bad behavior. The reviewers who leave the negative reviews are all fresh created and only leave negative reviews to our listing. Even no other reviews exist. We contact those false buyer to try to located their concerns and offer after sales service you cant expect to get any rebound from them.