Ice Skate Sharpener Double Side Hockey With Chains. Features: Skid-proof, Durability, and Wearable Resistance. With Chains for Easy Carrying. It Can Be Hang on Your Key String. A Great Compact Grindstone, Portable Size. If You're a Hockey Player or Avid Skater, or Just Go to the Rink a Lot, This is a Nice Sharpener Tool to Keep Your Blades Sharp. One Side Grinder Width is 3 Mm, and the Other Side is 4 Mm. Also, It Can Be Adjusted by the Screw to Reach the Appropriate Width. Both Ends Can Be Used. Notice: Used for Daily Ice Skate Blade Maintenance Only. Specifications: Model Number: Other Item Type: Blades Grindstone Material: White Sandstone Color: Blue, Black, Green, Red . We are an international seller, your order will be shipped from abroad so please allow the necessary time of minimum 14 working days for delivery right now depending on where you ship to, due to ongoing delays in postal deliveries globally.