Throwing Pack

Robotic Arms are a hardmode accessory that throws an extra free thrown weapon (the weapon is the one you used) along with 70% more knockback. It looks like two hands on metal ropes attached to a metal frame.

Recipe

 * 2 Titan Gloves
 * 5 Iron Chains
 * 5 Ropes
 * 5 Iron Bars
 * 3 Wires
 * at a Tinkerers Workshop