Of the Neck Cauls out there the Stew Mac one is the best. I know because I was suckered into buying one that has a stolen and photo shopped picture of the Stew Mac version. Tried to save some money but, now I have that caul that is truly worthless. The Stew Mac caul well fits most necks that are bolt on and then some. It helped me out extremely when doing fret work. Save time, money and effort and buy the real deal... The Stew Mac Neck Caul is the best and very hard to beat. Ignore and avoid the Chinese made imports at all cost. Just not the same... Thanks Stew Mac!