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" Individual pull test(1400 lbs) on stem cable with cable eye during   "Working in process". Color code cams (colors anodize) and sews slings. Molded thumb pieces. Strong 14mm Dyneema slings. Size: #1(5/8” ) to #6 (1 ¼” )