Gemfan is well known for its great design that provides both responsiveness and durability! The Floppy Poppy props are no exception! These folding props by Gemfan have a diameter of 5.1", 3.5 pitch, weight only 4.7 grams, and they are POPO compatible!Choose a color! (Fluorescent Green, Blue, Clear Black, Red, White)Note: Please make sure to follow the below diagram when mounting the prop. All logos should be facing up. Mounting in the wrong orientation will cause failure!SpecificationsType: F5135Material: PCAdapter Rings: NOBlades: 3 BladesPitch: 3.5mmProp Disk Diameter: 129.6mmCenter Hub Thickness: 7mmCenter Hole Inner Diameter: 5mm (POPO Compatible)MaxProp Width: 14.2mmWeight: 4.7gIncludes1 x Hub Assembly2 x CW Prop2 x CCW Prop