Push button automatic with intergrated safety, aluminum handle, 3'' 154cm stainless steel blade. Spring is strong, and safety works correctly, no blade wobble, 4 1/16''...

Carbon steel blades, jigged bone scales, nickel bolsters, brass liners, main blade snaps fully open to locked position, small blade about halfway(last photo show blade position when opened), 3...

2 13/16'' carbon steel blade, faux wood scales, nickel bolsters, brass liners, weak spring, only opens about 1/3 of the way, 4''...

All carbon steel construction, brass liners, plastic shell wrapped over metal, snaps fully open into locked position, safety lock works, 3'' blade, 7 1/2'' extended, 4 1/4''...

Aluminum scaled knife has very weak spring, the push button and safety lever work, 4 1/4'' folded. Whoever was working on the knife never finished and pins are not cut and peened, I believe...