Strong Suction Cup, The strong suction cup keeps your sharpener in place and allows you to sharpen the knives with one hand only. Ergonomic Handle, Handle activates and deactivates secure suctions so you can keep them in place or move them anywhere else needed. Compact and Portable, Small in size, but exceptional in sharpening your knives, perfect to be carried during camping and island hopping. 20° Consistent Sharpening Angle, The sharpener is pre-set at 20° to give a precise edge consistently every time. Wide Use, Sharpens kitchen knives, and anything and everything with blades, even serrated ones!