The operator exercises by gripping a palm bar in each hand. Each end of a
static or non-stretchable line or cord is run through a tunnel within a
respective palm bar and secured therein, usually with a knot. A pivoting
impinger is installed within the palm bar so that its head swings into
the bottom of the tunnel against the static line to keep it from slipping
out of place. Each end of a different cord, a stretchable one, is
anchored within the ends of the palm bar with its mid-portion, usually
padded, arranged to snugly encircle the back of the operator's respective
hand for support. The mid-portion of the static line runs through a
pulley system which has an impingement strap connected to it for
anchoring to a wall or door in any one of several ways.