Sparx Radius Grinding Ring Size:9/16" Designed with a 3D lasted

Designed with a 3D lasted CURV composite boot and Comfort Edge padding

USA-Made Quality: Durable build backed by American craftsmanship

Impact Sternum & Shoulder Caps: Pre-formed design maximizes safety and flexibility

Made from durable

Sparx Radius Grinding Ring Size:9/16" Designed with a 3D lastedThis 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