Just wanted to add my "2 cents" to the previous reply. If ya ask 10 saddle makers a question.....you're sure to get 12 or more different replies! Anyway, there is NO reason a DAUBER can't be used for all edge dyes of any type....oil or waterbased!! However, I always burn the fuzz off ALL my daubers by simply igniting them like a "tiki torch" and let 'em burn for a moment before blowing them out. You will find a "crusty" ash, kinda like a roated marshmello.....but if you rub it off with your fingers, the dauber will be ready to use. Finally, I hang all my used daubers on a rack because I only use oil dyes....and daubers can certainly be used over numerous times (one color per dauber).