Material: This hockey skate sharpener is made of high-quality plastic and diamond, with fine workmanship and durability. Design: Repairs damaged blades in 10 seconds without removing the skates. Double-sided design: one side is a sharpening stone and the other side is a deburring stone. Specifications: The hockey skate sharpener is approximately 7 cm long and 4.5 cm wide; the sharpening stone's diameter is 12 mm, its length is 35 mm, and it offers 80-grit coarse sharpening and 400-grit fine sharpening. Advantages: This skate sharpener is effective for daily maintenance of skates. Easy to use and durable. Usage: This skate sharpener is adjustable to fit the blade width of most hockey and figure skates, and is lightweight and portable. Specifications: Material: Diamond Size Chart: Overall dimensions: 7 x 4.5 cm / 2.76 x 1.77 inches Sharpening stone diameter: 12 mm / 0.47 inches, Length: 35 mm / 1.38 inches Package includes: 1 hockey skate sharpener Notes: 1. Please allow slight errors due to manual measurement. 2. Due to differences between different monitors, the picture may not reflect the actual color of the product. 3. Happy shopping!