Harness CollarsIf you have a track car with shoulder harnesses, you will notice the straps tend to move around on the roll cage bar, causing you to constantly adjust them. This simple solution prevents the shoulder straps from moving back and forth. These are a split collar design made from light weight steel, and black oxide coated to prevent rust. Choose between 1 1 2" or 1 3 4" diameter. Please measure your roll cage before purchasing. **Sold Individually**