Block knife Sharpeners come in two styles, Original knife sharpener Starting at $19.99, and New Model sharpener starting at $24.99, Both sharpen the same. New models are much easier to use do to the New Patent Anti-Slip grip and thumb guide added to the handle. ((Free Shipping any destination in the world. More you order the cheaper new models knife sharpeners are, 2 for $16.00 each, 3 to 12 for $13.00 each. Need help ordering call 352 568 0444. .