Tarot Carbon Fiber 1055 10X5.5 1055R Pros Propeller CW / CCW TL2826 Black for Multicopter T Department Of Pure Carbon With High-End Pros Propeller Propeller, The Roots With Large Tilt Angle Enhance The Overall Strength, Effectively Raising The Propeller Effect. Using Carbon Content Of 100% Pure Imported Toray Carbon Fiber 3K Woven, High Temperature And Pressure Precast Precision Machining, Hardness Higher Than Conventional Products Market, The Pros And Cons Of Each Pair Of Full Carbon Fiber Propeller Are Artificially Trim Static And Dynamic Balance, TAROT Optimize A Series Of Full Carbon Fiber Efficiency And Stability Of The Positive And Negative Load Wing Paddle. Weight: 7.9g/PCS Main Hole Diameter 4mm, 3mm Diameter Side Hole Center Distance 12mm