Black Tri-Fold Wallet Back Cut from Hermann Oak Leathers! Use these veg tanned wallet backs with our Tri-Fold Wallet interiors. Ready to *tool, dye, and finish. Unpunched! 9-1/8" x 4-3/16". Item #100-4032001. *Note: Black and Brown are drum-dyed veg tanned leather, they accept water, so you can stamp them, but using a swivel knife and tooling may be difficult.