This is a hook sharpener primarily used for lure fishing. It should be useful for those who prefer to use fine-wire and firewire hooks. The grip is made of rosewood (urethane coated) and is shaped for easy gripping. The size is approximately 120mm in total length as shown in the photo, so it's easy to use if you keep it in your tackle box or attach it to a pin-on reel with line clippers, etc. (Since this is a natural wood product, the wood grain may vary.)