- Indoor Replacement Blades with Air Flow.
- Case Quantity: 12.
- These Blades are compatible with all indoor Middle School, High School, and Collegiate sticks.
- For safety reasons, never interchange Outdoor and Indoor Blades!
- Outdoor surfaces like concrete and asphalt can wear thinner indoor blades to the point where they can actually become sharp enough to be dangerous.
- Conversely, outdoor blades are heavier and thicker to stand up to asphalt and concrete.

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