Ok, but I don’t tan them myself, I’ve just bought them veg tanned. Basically to begin with, you have to know that the tails that you buy come just tanned, ready to work, but they are typically very fragile around the outside edges. So when you order them, keep that in mind for making sure it’ll finish the right size. You really only get one bow grip per tail. But, you’ll be able to get many arrow shelf rests from the left over. This stuff is very tough, makes great shelf material for any bow. Measure the circumference of your grip and buy a tail that is long enough & wide enough. You’ll want a buffer of about an inch around the outside of the tail to be able to make it uniform thickness.