Istor Professional sharpener for sharpening knives, secateurs, hedge shears, loppers etc. - easy to use. - no pressure necessary. - forms no burr on the blade. - cutting edges remain sharper for longer. - can be used by both right and left handed people. Has a longer sharpening section than the standard model and includes a thumb guard to protect your thumb when sharpening long blades. Total length 14cm, weight 47g. Swiss-made quality.