Small: 13cm (black) Aluminum tube Grinding body in Carbon Steel with diamond coating Sharpen your hooks with a grinding movement towards the hook point Perfect pocket size A blunt hook is one of the main reasons why fish are not hooked properly in virtually every branch of angling. With the Diamond Pen Hook Sharpener from Westin, blunt hooks are a thing of the past! Simply sharpen your hooks with a grinding motion toward the hook point and they are as good as new. The hook sharpener comes in a handy pen making it easy to carry in any pocket or bag.