These pegs expand your wire designing possibilities when using transparent WigJigs. This is a set of 6 aluminum pegs in the diameters 3/16", 1/4", 5/16", 3/8", 7/16", and 1/2". Used only with the Olympus, Olympus-Lite, and the Electra wire jigs, or any wire jig with 3/32" holes.