The ergonomically-designed Signature hand-held knife sharpener will enable you to maintain your knives in optimum condition. Just a few simple strokes through the mechanism is all it takes. Sharpen little and often to keep your Signature knife as good as the day you purchased it!Please note: This sharpener should not be used with serrated blades. Size: Height 6.5 cm x Width 3 cm x Length 18 cm;