Unique styling: this is a pure mechanical structure, no lubrication as bearings, when the gyroscope is rotating, the base of it can have a little shake; Note: Please be patient to the toy, which need to be wrapped with many rounds of rope, it would rotate stably when reach a certain speed; If you just wrap little round of rope, it would rotate slowly and unstablyGreat toy: it's force seems to defy gravity, it fascinate adultGood quality: adopt bright colorful metal frame, stainless steel shaft, gold-plated inertia flywheelWonderful gift: help to learning the world, it is a funny and attractive giftSuitable for adult: it also can help kill time and help you relieve stressGyroscope metal anti-gravity spinning top gyroscope balance gift colorful Specifications: Material: stainless steel Color: colorful Quantity: 1 piece How to use: 1.One end of the drawstring goes through the small hole of the middle shaft 2.The rotating shaft is made to uniformly rotate the shaft 3.A little force can make the Gyroscope rotate Warm note: Make sure the base is flat. This is a pure mechanical structure, so no lubrication as bearings, when the gyroscope is rotating, the base of it can have a little shake. Package includes: 1 x Metal gyroscope Suit to: this is suit to over 14 years old.