Material: The ice hockey skate sharpening stone is made of high-quality plastic and diamond, with exquisite workmanship, wear-resistant and durable. Design: Maintain and repair damaged edges or blades again within 10 seconds, without having to take off the skates. Sharpening stone and deburring stone on 2 sides. Specification: The skate sharpening stone is approximately 7 cm long and 4.5 cm wide; Sharpening stone diameter 12 mm, length 35 mm, coarse grinding 80 grit, fine grinding 400 grit. Advantage: The ice blade sharpening stone can effectively perform daily maintenance of the ice blade. The operation is very simple and the sharpening stone is durable. Application: The ice blade sharpening stone is adjustable, suitable for most ice hockey skates and figure skating blade widths, light weight, easy to carry. Specification: Material: Diamond Size Chart: Overall size: 7x4.5 cm/2.76x1.77 inches Sharpening stone diameter: 12 mm/0.47 inches, length: 35 mm/1.38 inches Package includes: 1 piece ice hockey skate sharpening stone 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