The Multi-Sharp Secateur, Pruner and Lopper Sharpener works. There isn't anything worse for a plant or a gardener than dull pruners that tend to rip instead of cut cleanly. And pruners are not usually easy to sharpen because of the shape and length of the blade. This little gizmo does a fantastic job. It grips one side of the blade and allows you to put a sharp edge on the other side. It works on a curved or straight cutting edge. I have successfully sharpened some pretty small clippers with it. It is adjustable to allow for different sharpening angles.