True golden spiral cam such as   logarithmic spiral cam   Constant 14.5 degree contact on vertical   walls that will gives greater holding   power.   Soft aluminum alloy (6061-T6) and Fat   cams (6mm thk. -#1 to #4) designed for   Sand Stone.   Center Compression Spring wills quick   release individual cams for better grip.   "U.S. PATENT PENDING"     U.S. Rock Gear, 36 years mountaineering and climbing gear design experience present G S CAMS (golden spiral CAMS). Cam designed with logarithmic cam and is constant 14.5 degree contact to the vertical wall that create greater holding power. Sticky 6061-T6 aluminum alloy and wide(6 mm) cam(#1 to #4) designed for Sand Stone. Center compression spring will quick release individual cam for better grip (U.S. PATENT PENDING). Long flexible single stem stainless steel cable (5/32" diameter X 7 X 19) make less walking in the crack. Molded comfortable thumb piece and strong 14mm Dyneema webbing. Working on CE and UIAA certification.             Made in U.S.A         U.S. Patent Pending