GSM Outdoors 18725: The Camillus Extreme Edge Knife & Shear Sharpener is purpose built to keep your gear in peak working condition wherever you are, 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. Featuring a carbide knife sharpener and a ceramic shear sharpener as well, this easily portable sharpener is ideal for home, office or camp use.