Product description Size: approx.38x38x8cm Net weight: approx. 750g Pendulum weight: approx. 345g Material: ABS Waist: 110cm inner waist Delivery content: 1 x Smart sport ring 1 x product manual 1.Adjustable size and removable part - this sport ring can be adjusted differently depending on the waist size (from 23 inches to 41 inches). These parts are easy to bend and separate, easy to store and save space. So you can take them with you anytime, anywhere to exercise. 2.Soft and comfortable: 360 Degree Massage Circle Soft sport ring allows you to exercise comfortably Fat Burning Faster - 2-3 times faster Burning Fat than normal sport ring.30 minutes a day to strengthen your Waist. 3.Auto Count and Auto Rotate functionsThe LCD screen makes it easy to circle many times. With the help of centrifugal balls, you can now perform sport ring goals every day without spending a lot of effort and time. NOTE: The raised part of the gravity slide must be counted up 4.Easy To Hoop ItAdded the orange safe lock. After lock the LCD screen with waistband, hold the gravity ball, slide it in the direction you like, and move your waist in the direction of the weight ball, then you can do the circular movements and enjoy your exercise. 5.Applicable scenarios: fitness circle, resistance training center, fitness equipment, fitness equipment, health massage products.