The Master Cam is a flexible, single-stem unit with an optimized cam angle for increased holding power. The Ultralight Master Cams are twenty percent lighter than the originals. If you carry a double set of cams, the weight savings is the same as a twelve ounce canned beverage of your choice. When compared to other brands, the weight savings can be much more. The new shark fin tooth pattern gives optimized bite in soft rock. Now available in packaged sets #1-4 and #5-8 10 sizes: #00 - 8, sizes 7 and 8 are new and very light for their size Slings are replaceable, and should be replaced every five years or earlier Color-coded 11 mm Monster sling, thumb piece and trigger Range Finder system assists you in choosing the correct size cam CNC machined for much greater precision than stamped or extruded cams CE/UIAA certified 100% made in the USA Individually proof tested