How much does this cost to the nearest dollar?

Gemfan Freestyle F4S Propeller 5.1 Inch Props 5 Inch for FPV RC Quadcopter Drone (Red + Yellow, 8pc - 4 CW 4 CCW)
GEMFAN is one of the most reputable propeller brand for FPV and Multicopters. PERFORMANCE Higher pitch and slightly more aggressive than F3. Great performance for heavier quad and shooting with GoPro. More speed and thrust for the amps at the top end. SPEC Diameter 5.1in | Weight 3.6g | Blade 3 | Pitch 3.6 inch | Mount M5 | Colors Jade Green, Mango Yellow, Peach Pink, Raspberry Red, Midnight Gray | RECOMMENDED Quad weight | Motor 4S 6S WHAT'S INCLUDED

Price is $13.00
Price: $12.99