Please refer to the attached images as there are some scratches. Golden Mean GM HOOK SHARPENER GM Hook Sharpener Easy hook sharpening, just by passing the hook point through the groove. GM Hook Sharpener. The GM Hook Sharpener is a convenient mobile sharpener that allows you to slide and store the whetstone part in the case. Using a diamond whetstone, it can sharpen hooks easily regardless of the hook material, just by passing the hook point through the groove of the whetstone several times. ● Closed dimensions: 85mm ● Weight: 21g ● Body material: ABS resin ● Whetstone material: Diamond whetstone ● Accessories: 20mm split ring ● Color: Black