- This product is for in-store pickup only - Tried-and-true, the original skate sharpening hollow profile still used today by the majority of professional and amateur hockey players around the world.The Sparx Radius Rings produces the traditional hollows most commonly used in hockey, including the most popular 1/2” and 5/8” cuts.Choose from different radius rings – from the deepest hollow for extreme grip (5/16”) to the flattest hollow for unmatched glide (1-¼”). FEATURES: SUPERABRASIVE COATING: The proprietary abrasive coating and cutting-edge manufacturing process ensures every ring produces an accurate and consistent sharpening. Every time PERSONALIZED PERFORMANCE: Whether you want extreme grip for those tight turns, or that extra glide to beat your opponent to the puck, the Sparx Sharpener provides 16 different hollow options 60+ SHARPENINGS: On average the Sparx Grinding Ring will sharpen approximately 60 pairs of skates making the Sparx Sharpener the most economical sharpening solution ever SMART TECHNOLOGY: The Sparx Grinding Ring features a micro-chip that monitors ring life and alerts you when it’s time for a new ring so that you will always be ready to sharpen
