6 x Quantity of Heli-Max 1Si 55mm Ultra Durable Propeller Blades Rotor Props - FAST FROM Orlando, Florida USA! For: Heli-Max 1Si Fast Free Shipping From the USA! Expedited Shipping Options Available! Buy with Confidence from HobbyFlip! Also Compatible With: Hubsan X4 H107 | Hubsan X4 H107D | Hubsan X4 H107L | WLtoys Mini RC Beetle | Estes Dart | Walkera QR Infra X | Walkera QR Ladybird | Walkera QR Spacewalker | Walkera QR W100 5.8Ghz FPV | Traxxas QR-1 | Walkera QR Ladybird 5.8Ghz FPV | WLtoys V939 | Double Horse 9128 | Heli-Max 1SQ | UDI RC U816 | UDI RC U816A | JXD JD-385 | Heli-Max 1SQ V-CAM | Walkera QR W100 WiFi | Nine Eagles Galaxy... And any other custom application you can dream up!