Aluminium Olympic Safety Collar inSPORTline CL-21 is a simple but necessary accessory for threadless Olympic bars with 50 mm in diameter. This collar features a simple quick-release mechanism which allows you to quickly remove the safety collar from one bar and secure it onto another. It is made of a varnished aluminium for longer service life and lower weight. Thanks to the red coating, you will never lose it and all on-lookers will be ensured that you have the weight plates well secured.