PRICES MAY VARY. Barbell Collar, Olympic Aluminum barbell collars(Sold in Pairs) is made of Billet Aircraft Grade Aluminum ,lightweight, its durable and safe for any 2 (50mm) bars, no matter how heavy you lift , our dumbbell clamps securing your weight plates, none slip,you could concentrate on your training without worry. The aluminum material is heavy duty, looks cool and high quality too. Barbell Clamps have a rubberized lining to grip and protect the bar, lock collars are machined from…