It will work in both a flat bottom or curved bottom nut slot due to its ingenious design, just sand off the tab for a curved bottom.
Graph Tech TUSQ XL Fender Style Slotted Nut Left Handed (White)
Graph Tech TUSQ Classical Slotted Nut Left Handed (White)
Graph Tech TUSQ XL Epiphone Style Slotted Nut Left Handed (White)
Graph Tech TUSQ XL Jumbo Slotted Nut Left Handed (Black)
Graph Tech TUSQ XL Epiphone Style Slotted Nut Left Handed (Black)
Graph Tech Un-Lock Nut Tusq XL Slotted Non Locking Floyd Rose Original R2 Repla…