Hero Shield PairThe Shield of Strength is here!! Put your olympic plates onto the Shield, lock down the collar and begin your Super Hero, Barbarian, Viking, Spartan training! For years this has been in the works, you've asked for it, I've been testing, prototyping and finally you can have one to add to your training. Comes with forearm strap. High quality nylon strap and high quality stainless steel buckle. The Plate loading pin is 1. 906" and comes with shaft collar