Metolius Ultralight Master Cam These newer cams are 20 lighter than the originals Each color option represents a cam size, allowing you to pick and choose which size cams you need instead of buying a whole set Flexible, single stem unit with optimized cam angle for increased holding power The Range Finder system assists you in choosing the correct size cam and is available on sizes 2 through 8 only Optimized cam lobe angle for increased holding power