The Omer Stingray Blade uses a 22-degree angle as the result of trying to optimize the power of the push through the water, relative to effort. The blades are produced in a low modular polypropylene in Black (medium hardness).
Replacement fin blade for omer Stingray fins. Sold as a single blade. Foot pockets not included. Shown in picture only for reference.
22-degree blade angle