Material The ice hockey skate sharpening stone is made of high quality plastic and diamond, exquisite workmanship, wearresistant and durable. Design Maintenance and repair of damaged edges or blades again within 10 seconds and no need to take off the skates. Grinding stone and deburring grinding stone on 2 sides. Specification The skate sharpening stone is about 7 cm long and 4.5 cm wide Grinding stone diameter 12 mm, length 35 mm, coarse grinding 80 grit, fine grinding 400 grit. Advantage The ice blade sharpening stone can effectively carry out daily maintenance of the ice blade. The operation is very simple and the grinding stone is durable. Application The ice blade grinding stone is adjustable, suitable for most ice hockey skates and figure skating blade width, light weight, easy to carry. Specification Material Diamond Size Chart Total Size 74.5cm 2.761.77inch Grindstone diameter 12mm 0.47inch, length 35mm 1.38inch Package Includes 1 piece ice hockey skate grinding stone Note 1. Please allow a little 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