Creative design: this gyroscope toy has a mechanical structure and no lubrication like bearings; When the gyroscope rotates, its base may shake a little; Please note that you need to be patient with the toy, which needs to be wound with many turns of rope, it will rotate stably when it reaches a certain speed; If you only wind a small turn of rope, it would rotate slowly and unstably. Nice toy to pass the time: the gyroscope is designed with a simple but noble color, and it has the power to defy gravity, which will fascinate adults; It's not only fun, but it can also accompany you through boring moments. Quality and durable: the finger gyroscope is made of high-quality materials, strong and reliable, resistant to rust or corrosion, not easy to deform or break, and the smooth surface makes you play comfortably, which can be used for a long time. Wonderful gift: this spinning metal toy is delicate and interesting, suitable as a birthday gift or fun toy for your friends, family, colleagues or others who love physics and science, to help them learn about the world and explore science. Note: A small bottle of lubricant is included. When using the product for the first time, you need to put the lubricant in the package into both ends of the gyroscope to lubricate it. size: Product size about 70 x 92 MM, base about 38 x 32 mm Material: zinc alloy color: A-gold / B-silver / C-black / D-multicolor / E-pink Package Contents: 1 x gyroscope 1 x drawstring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.