... WELCOME YOUR INQUIR HANDLE STEPPER,MINI STEPPER,BALANCE STEPPER ,STEPPER,(NEW PRODUCT!)STEPPER,TWIST STEPPER,HOT SALES!(With new Design Patent)Certificate: ... CE With Design Patent and Utility ... EN 957-1:2005; EN 957-8:1998)With Design Patent and Utility Model PatentMaterial: steel tube, plastic, ...