Composition in black and white. Lines defining contours and shading setting volume. Studies of both hands spread on both halves of the support, against white background. In the upper half, man's on the right hand, diagonally, seeing himself sprained wrist. Hand is holding a closed cylindrical shape object suggesting the cable a tool. One sees clearly the minimum fingers, ring, middle and index profile and the back of the thumb. In the lower half of the support, a man of the on the left hand of study, almost vertically, seeing himself sprained wrist. Hand is holding a closed cylindrical shape object suggesting the handle of a tool. They see the profile of the minimum fingers, ring and thumb.