1) Climbing equipment 
A Tricam is a type of climbing protection equipment. A versatile nut/cam hybrid, the Tricam was invented by Greg Lowe in 1973, and came to market in 1981. They are currently manufactured by C.A.M.P. of Premana Italy. ==Design== The Tricam is a passive camming device consisting of a carefully shaped aluminium cam attached to a length of webbing tap...