JB-SMS22 Arm cosmetic prosthesis
Pulling the thumb can control the hand movement. The wrist joint is passively rotated. The elbow joint is toggled left and right, and the upper arm is free to swing. The upper arm can be freely swinged.
Quantity
Pulling the thumb can control the hand movement. The wrist joint is passively rotated. The elbow joint is toggled left and right, and the upper arm is free to swing. The upper arm can be freely swinged.