2 1/8" closed. 1 1/2" 440 stainless blade. Grooved nickel silver bolster. White smooth bone handles. No shield. Wild West Mustangs Series. The Mustang is a feral horse - wild and free - a descendant of runaway Spanish stock. They are small and strong, and they have survived for hundreds of years in the Southwest. Just like their namesake, the Rough Rider Wild West Mustang is small, strong, and built to last.