Feature: -- This fitness gear trims your waistline without torturing your hips. -- Instead of energy-eating manual spinning, this has a centrifugal ball that only requires a little force to get the same (or even more) results. And the best thing is this can be strapped so you won t get bruised during workouts. -- AUTO-SPINNING C With its centrifugal ball s help, you can now do your daily goals without exerting a ton of energy and time. The ball provides a bit of force to the hoop when spinning giving you that effortless workout dream. -- A FITNESS BUDDY C Helps you keep track of your fitness progress! It has a built-in smart counter that calculates & stores data (which is shown in an LCD screen) of your exercises. -- EASY TO ASSEMBLE C To build this gear, simply lock the parts to each other along with the LCD screen. Then slide the centrifugal ball on the outer side, and fix the support pad on the inner side. No fuss, no sweat! -- ADJUSTABLE C For everyone! It has an elastic tube underneath each hoop part that can be stretched out to fit ANY waist size. Specification -- Material: PP -- Centrifugal Ball Material: PP + Magnet -- Color: Orange Parcel content: -- 1 X Auto-Spinning Hoop (includes 1 pc. Hula Hoop, 1 pc. Centrifugal Ball, & 1 pc. LCD Indicator) Notice : Please wash with boiling water before using Keep clean and dry when storing Please allow 1-3cm error due to manual measurement.The colors may have different as the difference display, please understand.