Xoar PJT1-18x8 Sport Prop Carbon Fiber Propeller for Gas RC Model Airplane Designed for top quality and best performance Proprietary internal structure and foam core for the lightest weight and the best strength Premium Carbon Fiber fabric Pre-balanced horizontally and vertically ...Xoar PJT1-18x8 Sport Prop Carbon Fiber Propeller for Gas RC Model Airplane Designed for top quality and best performance Proprietary internal structure and foam core for the lightest weight and the best strength Premium Carbon Fiber fabric Pre-balanced horizontally and vertically* Xoar is the first to offer both X & Y axis balance - out-of-package ready to fly COMPATIBLE ENGINES: 30 - 40 cc Engines - DLE30, DLE-35RA, EVOE33GX or similar for RC Model Airplanes - Gliders, Flying Wings, Delta Wings, Warbirds and Aerobatics Planes Categories RC Propellers Gasoline