Extreme Training Equipment PL7383 Jammer Arms Attachment (Pair) AKA lever arms 

Adjustable to allow for upper and lower body workouts such as presses, rows, squats, and deadlifts. 

• fits 3" X 3" tubing
• 5/8" rod
• pin to keep arms locked in place
• 12" chrome peg to load olympic plates
• rubber bumper to prevent metal to metal contact