The Gemfan D90S 90mm 3.5" Ducted 3-Blade Propeller comes with an M5 mounting diameter, 90mm/3.5" length, 3" pitch, and only weighs 2.3g each. They perform particularly well on Cinewhoops with ducts.Choose a Color:Clear GrayMilk WhiteWhiskyBlackFeatures90mm or 3.5" size3-Blade propellerM5 MountSpecificationsColors: Clear Gray, Black, Milk White, WhiskyGemfan D90 (3.5'') Cinewhoop PropsProp Mounting Pattern: M5 (5mm)Props Diameter: 90mm/3.5''Center Thickness: 5mmWeight: 2.3gMaterial: PCPitch: 3 inchIncludes2x Gemfan D90 90mm 3.5" Ducted 3-Blade Propeller - M5 Shaft (Set of 4) (CCW)2x Gemfan D90 90mm 3.5" Ducted 3-Blade Propeller - M5 Shaft (Set of 4) (CW)Featured VideosADD VIDEO TITLE HERE IN BOLD CAPSADD VIDEO TITLE HERE IN BOLD CAPS