"This pair of prosthetic hands are attached to the ends of two telescoping, multi-jointed chrome rods which fasten into a thin plastic case designed to be worn on the back."
Helping Hands is an artifact that provides the wearer with five new equipment slots (much like the Multiple Arms mutation): Left Robo-Arm, Left Robo-Hand, Right Robo-Arm, Right Robo-Hand, and Robo-Hands.
Robo-hands have a base 8% chance to attack. This chance is not affected by Jab or by attack-rate-altering powers in the Dual Wield skill, though robo-hands will attack when Flurry is used. Additionally, each hand's unarmed attack is more powerful than normal fists.
Unequipping helping hands will cause any items equipped to the extra hands and arms to be dropped in the square you occupy.