Material: The skate sharpener is made of high-quality plastic and diamond, with exquisite workmanship, wear-resistant and durable. Design: Maintains and keeps damaged edges or blades sharp again within 10 seconds, and you don't need to take off your skates. Sharpening stone and deburring stone on 2 sides. Specification: The skate sharpener is about 7 cm long and 4.5 cm wide; Whetstone diameter 12 mm, length 35 mm, coarse grinding 80 grit, fine grinding 400 grit. Advantage: The skate sharpener can effectively perform daily maintenance of the skate blade. The use is very simple and the sharpening stone is durable. Use: The skate sharpener is adjustable, suitable for most ice hockey and figure skating blade widths, light weight, easy to carry. Specification: Material: Diamond Size chart: Total size: 7x4.5cm /2.76x1.77inch Whetstone diameter: 12mm /0.47inch, length: 35mm /1.38inch Package includes: 1 pc Skate Sharpener Note: 1. Please allow a slight error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping