Colonial Knife 501 Equestrian Hoof Tool. HARDENED automatic hoof tool, used for cleaning a hores' hoof, also includes small hardened stainles. steel flooding blade, boot clip for easy reach, hoof tool locks open or closed, push of the button. one handle hoof deployment, same platform as used by the U.S. Military. Pocket clip. One hand opening-push button to deploy hoof tool. Tire traction-sure grip. Made in U.S.A. Weight 1.5 oz length closed 4 1/4-Inch.