Warwck Just-A-Nut III, 5-String, Lefthand, 45 mm width - Brass, drop-in replacement for Warwick Just-A-Nut II, adjustable bass guitar nut, 5-string, lefthand version, suitable for fretted and fretless basses, made of brass, 45 mm / 1 3/4" width, 7 mm depth, height adjustable by via hex key screws, adjustable from approx. 5.8 - 8,2 mm / 15/64" - 21/64" (measured inside of slot), incl. 1.5 mm hex key wrench, NOTE: All Just-A-Nut III models made of brass are manufactured with a 2.5 mm high bottom plate in order to fit both fretless and fretted instruments. Should the nut be too high for your instrument, the height of the bottom plate can be sanded down to allow for up and downwards adjustability