Knife Sharpener, Wuudi 2 Stage Kitchen Knife Sharpener with Spare Grinding Head Money Saving: A spared grinding head is included in such a low price. The replaceable, aesthetic grinding head ensure a long time using. 2 Stage Sharpening: Stage 1 sharpens dull blades, stage 2 hones blades to razor sharp. Safe designing: Non-slip base keeps it sturdy and safe when sharpening as the grip is comfortab portable to handle. Fast and Easy Using: Just 3 to 4 pulls through the sharpener is all it takes to restore any knife to a precision edge. Quality Assurance: If any problems happen during the using, please contact us and we promise 100% GUARANTEE.