Jumping body movement! Also suitable for jumping and splashing without movement, momentary force, balanced body movement. It is also effective for children's motor nerve development and adult diet. Product size: (approximate) diameter 122 x height 32.5 cm (handle height adjustment: approx. 108 to 128 cm) Product weight: (about) 14 kg, load capacity: 150 kg Color: Black × Green Set Contents: Text, English Manual Product Warranty: 1 Year In the training hall, high-strength, high-elasticity rubber is used instead of metal springs. Far more than the elasticity of the metal spring stimulating the torso, and it is also easy to adjust the elasticity