Those blade are made by high quality glass  fiber.The Extreme blades produce absolutely magnificent flying characteristics from superb stability to breath taking 3D performance.

The mounting holes are identical to the stock blades, There are easy to install.. Real glass fiber product!

Specifications:

- Length: 325mm

- Width: 32mm

- Grip: >=4mm
- Hole: 3mm

- Blade Thickness: 3.5mm

- Blade Weight: 21-22 g/each
- Airfoil: 100% Symmetrical
- Make: Glass Fiber