This is a scalloped nut for Fender-type guitars. Some people may not be familiar with scalloped nuts, but they are used on SUGIZO's main Stratocaster (LUNA SEA, X JAPAN) and HISASHI's Zemaitis (GLAY). Scalloping the nut allows you to feel the separation of each individual string. Please check the size in the photos. String spacing is approximately 7.5mm. Bottom radius is 7.25 inches. #gibson #fender #PRS #zemaitis #ESP #tokai #fernandes #fujigen #greco #electricguitar #acousticguitar #lespaul #stratocaster #telecaster #guitarrepair #guitarparts