Description: Product name: mechforce edc gyroscope Product weight: about 152 grams Product material: metal There are some accessories to help you adjust, the first time to play it, maybe have some noise, when it smooths will be better, thank you. Introduction: 1.The new threaded structure design than before the sameproductslook more beautiful to look at and it feels better to play 2.Hold the outer ring with your hands to turn the inner ring and the main body, then the inner ring and the main body can turn at the same time 3. Freely change the angle of the outer ring by holding the hand, the inner ring and the main body will also change the angle at the same time to maintain balance 4. Squeeze the main body with your hand and turn the outer ring, the outer ring and the inner ring rotate at the same time