The great looking LMX54 Crossmaxx® Aluminum PRO collar set 50mm can be used with all (smooth) Olympic bars with a 50 mm diameter. The LMX54 Crossmaxx® Aluminum PRO collar set 50mm uses a unique slip-proof quick release mechanism to allow plates to be swapped and secured in a single motion. What’s more, these collars will not damage the Olympic bars.
The LMX54 Crossmaxx® Aluminum PRO collar set 50mm is sold in sets of two pieces.

Weight: 366 gram (per set)
Dimensions per collar: L 85 mm x B 85 mm x H 40 mm
Material: aluminium