Calorie jump rope Features : count, timer, count alarm, timer alarm, clock, calorie, fat Unit size : 178 x 30 x 28 mm Product color: blue, red, green, silvery Imprint size : h. 8 x l.44 mm Battery type : button cell lr44x 1pc Battery life : over 1 year Special case color : min 3k Multi-languages instruction manual Six months manufacturing guarantee Remark : kyto patented design Material : abs hands / pvc rope