The Quick Connect Collar by PRIME allow the user to conveniently turn common free weight-oriented barbell/curl bar exercises into cable exercises in seconds. The Quick Connect Collars are sold in pairs, feature an easy-to-use safety screw system, and offer the ability to add chains, if desired

Product Specifications:

Fits 1.90 to 2.03 sleeves
Accommodates most chain sizes
300lbs max load per carabiner