Hand-Tooled Chained Skulls Genuine Leather Bifold Biker WalletThree skulls overlap on the front panel jaws interlocking, foreheads stacked, chain links woven through every gap. The carving is hand tooled into black cowhide. Dark brown dye fills each groove, so the skulls and chains read like raised metalwork instead of flat leather. This chained skulls leather wallet measures 4" 8" closed. Ten card slots, three bill pockets, and a zip compartment inside. A . 925 sterling silver grommet sits ready for your chain.