Main Tube：Normal Steel/Galvanized Steel
Fasteners：Bolts, Nuts: Stainless steel 304
Function：The Stretch device: Strengthen the strength of abdominal muscles.
The rotation device: Strengthen the strength of arms and legs, and enhance the balance ability.
The twist device: Exercise the muscles on waist and enhance the ligament elasticity
The big wheel: Exercise the muscles on arms, and enhance the flexibility of the shoulder joints
Use：The Stretch device: Clenching the armrest firmly, keeping the legs straight and trying best to bend the body up.
The rotation device: Sitting on the seat, pedal the feet on the pedals and rotating, rotating the arms accordingly.
The twist device: Sitting on the seat, clenching the armrest with two hands, and rotating the waist.
The big wheel: Clenching the hand lever of the big wheel firmly, rotating the wheel in clockwise or anticlockwise direction.