This is 8045 8×4.5 Propellers . They are for lower RPM motor and slow-flying drone models.

They have wide and thin blades in their size category which makes them much flexible in crash conditions where they do not break easily. 8045 8×4.5 SF Propellers Black especially draws larger currents and in results will give you a considerable amount of thrust.

8045 8×4.5 have high-quality propellers specially designed for multi-copters and have 15° angle design at the end of the propeller to avoid whirlpool multi-copter flying.

This 8045 propeller can be used with brushless motors with an 800-2200 kV rating. With a low kV motor (800 – 1400 kV), this propeller offers smooth flights with longer flight times perfect for FPV and aerial photography. With a high kV motor (more than 1200 kV) this propeller offers fast flights perfect for acrobatic flight

Features:

• Light Weight and Balanced Design
• Suitable for DIY Quadcopters Hexa-copters Drones Multi Rotors
• Washers not required when operating with 2212 Motors
• This Propeller is basically made for Quadcopters.
• Multi-Rotor Drones.
• Fixed Wing Drones.
• Single Rotor Helicopter.
• Fixed Wing Hybrid VTOL.

Specifications:

• Band Name: Any Brands
• Material: Nylon Glass Fiber
• Model Name: 8045 8045R
• Rotation: CW & CCW
• Diameter: 8 inch
• Pitch: 4.5 inch
• Propeller Diameter: 22.4cm
• Diameter of Shaft:6.0mm
• Thickness of center:9.0mm
• Color: Any
• Weight: 14gm(Approx.)