Check the listing for details. Camillus Extreme Edge Knife & Shear Sharpener 18725 Camo - Brand New. Color: Multicolor, Condition: New. Listed at 17.97 USD. Camillus Extreme Edge Knife & Shear Sharpener because a dull knife is a dangerous knife. A suction cup located on the bottom helps secure the sharpener to flat, clean surfaces and provides safe & easy one-handed sharpening. Incorporates a Carbide Knife Sharpener and a Ceramic Shear Sharpener. This easily portable sharpener is ideal for home, office, or camp use. Lifetime Warranty. Tungsten Carbide SharpenerThe ExtremEdge V2's knife sharpener is made with tungsten carbide, an inorganic chemical compound more rigid than steel and much denser than steel or titanium. Tungsten carbide tools maintain a sharp cutting edge better than other tools as they can resist high temperatures and are extremely hard.Ceramic SharpenerThe durability and smooth surface of the ceramic sharpener featured on the ExtremEdge V2 provides precise honing and an ideal smooth finish to your blade.SuctionThis sharpener securely suctions to any smooth surface, allowing for one-handed use. Rotate clockwise to activate/deactivate suction feature.