These Large Round Super Pegs expand your wire designing possibilities when using transparent WigJigs. There is one Super Peg in each of three diameters (5/8" 3/4" 7/8"). These pegs fit the WigJig Olympus, Olympus-Lite and Electra. All WigJig Super Pegs are patented (US Patent 6,250,341).Super Pegs are an important accessory to our WigJig jewelry tools. They allow making a defined radius in jewelry wire. If you need to shape jewelry wire in a rounded shape with a diameter of 5/8", 3/4", or 7/8" then this set is the one you need.