PJT1 Gas Carbon Fiber RC Props - 26 to 34 InchPREMIUM MATERIAL: Made of Premium 1K Carbon Fiber Fabric. Carbon fiber's strength is excellent for minimal elongation, breakpoint and distortion, therefore it is the best for high performance RC Planes Propellers. LIGHTWEIGHT: Xoar Carbon Fiber Propellers are constructed with foam filling to ensure the lightest weight with great strength. PRE BALANCED* : Each Xoar prop is balanced both horizontally and vertically for minimal vibration caused by the