New Fly-X blades. Ellipse profile by Bauer ProSharp. Sharpened 3/4" hollow. Never used. Bought the same blades in Quad I Profile and the kid used those and never even tried the Ellipse Profile. There are three primary profiles: Quad profile This profile is best for a long powerful stride that pushes into the ice. It uses the specific radius  in all four skating zones for maximum support without wasting any power. Zuperior profile This profile is best for skaters who rely on agility. You’re a quick and nimble skater who plays more on your toes. You want better acceleration, top speed and stability while staying on top of the ice for explosive movements.​ Ellipse profile This profile is a natural balance point between power and agility based on your skating mechanics. This profile encourages use of the entire blade, giving you a seamless feel from toe to heel and back. The Ellipse delivers greater blade contact through each zone and maximizes the skater’s ability.​

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