The top two are single blade, bottom two each have a small blade and a large blade. The blades can all be reversed for safety, leaving a chrome blunt post. All have cocobolo wooden handles that Paul turned and drilled for the blade compartments and the pocket clips on the single blade variety. All the hardware are included in Penn State Industry kits. Handles were sanded to 12,000 grit, polished with EEE Ultra shine compound that says it doubles the grit (to 24,000), finished with friction polish and then waxed with Heritage Wax, a micro crystalline wax. Very interesting grain patterns on the different handles, but they were all cocobolo wood blanks.