Quick Release 2&rdquo; (50mm) Olympic Barbell Collars, FREE Carrying Bag Included (Red) Crossfit Training, Power Lifting, Garage Gym, Weightlifting QUICK RELEASE tab makes one-handed removal and installation easy for any barbell style workout. SOLID CORE INJECTION MOLDED NYLON RESIN FRAME makes these collars tougher than any others. MOLDED INTERNAL PRESSURE PADS help to keep your prized barbell protected from damage. AT ONLY 13 OUNCES EACH their lightweight adds a minimal amount to your lift and gym bag. 100% MONEY BACK GUARANTEE!!! Absolutely no risk. Give our product a try at your gym by ordering today!