Why do you need to sharpen your skates?
1.You need two sharp edges when skating on ice. It's the combination of having a sharp inner edge which the skater pushes off from and transfer that force onto the other skate's both edges which the skater glides on.
1.Our this type wheels are used with ProSharp SkatePal Pro3, ProSharp SkatePal Pro3 LONG ,ProSharp home knife sharpeners,Blackstone machine,Sparx machine,Wissota machine and others machine.