F.LLI Beltrame B-Sheath Wood Black Automatic Folding Pocket Knife ( 3.5" AISI 420 MA5M HRC 56 ) It is composed of colored anodized aluminum handles. The opening button is positioned in the ear of the grip plate and has a flared shape precisely to prevent accidental opening in the pocket. It has a long clip on the back for this use.It has a coil spring between the grip plates.It is available in one size of 20 cm and features total opening.