Metal Gyroscope Spinner Gyro Science Educational Learning Balance Stress Toys gift Modern Simple Office Accessories havefun Welcome, if there are any problems, please do not hesitate to ask us Specifications Name: Metal Gyroscope toys Lamps: None Size: About 9*7*7cm Action time on the ground : About 90 seconds Sents Material: 1.Internal: zinc alloy material. 2.Appearance: nickel material Rotor Material: 1.Internal: zinc alloy material 2.Appearance: nickel + Environmental paint . Rotor Shaft material: Sus304 stainless steel. Package lists:1Set Uploading a picture of the item you received is GREATLY RECOMMENDED! In the process, You can share with other consumers and make some new friends on Wish.