1, external dimensions/㎝: 92×40×120 , material: mainly adopts high-quality section steel, plastic; 2、Distance from the center of the seat cushion to the foot pedal: 55 cm. 3、Seat cushion up and down extension height range/㎝:60～83 4、Rated load: 2000N 5、Applicable to the joint activities of the upper and lower limbs, muscle strength and coordination function training, and enhance the muscle endurance.