The all-around workhorse of the Metolius line, Power Cams are at home on any type of rock, from the big walls of Squamish granite to the desert towers of Utah Sandstone, from mountainous Rockies limestone to super-hard Gunks quartzite. They"re also perfect whether you"re free or aid climbing, high in the mountains or at a roadside crag. CNC machined for much greater precision than stamped or extruded cams. Made from 7075 T-6 aluminum (sizes 1-6) or 6061 T-6 aluminum (sizes 7-8). SIZE 1 (blue): dimensions 0.49 / 0.71", strength 8 kN, weight 1.9 oz / 54g; SIZE 2 (yellow): 0.62 / 0.89", 10 kN, 2.3 oz / 64g; SIZE 3 (orange): 0.74 / 1.04", 10 kN, 2.4 oz / 68g; SIZE 4 (red): 0.93 / 1.32", 10 kN, 2.7 oz / 77g; SIZE 5 (black): dimensions 1.09 / 1.56", strength 10 kN, weight 3.0 oz / 86g; SIZE 6 (green): 1.28 / 1.89", 10 kN, 3.5 oz / 98g; SIZE 7 (lt. blue): 1.57 / 2.26", 10 kN, 4.5 oz / 127g; SIZE 8 (lt. purple): 1.91 / 2.81", 10 kN, 5.3 oz / 150g.