... . 3.Adjustable step height. 4.Sturdy and durable steel construction Mini Twist Stepper , twister stepper , fitness stepperTwo hydraulic cylinders smooth your ... , time, strides per min, scanSkid-resistant rubber footing holds the mini-stepper in placeSturdy and durable steel constructionPacking: foam board ,foam ... .W/ G.W.: 161bs/ 181bsContainer load: 847pcs/20Ft 1690pcs/40Ft Mini Twist Stepper