Tarot a Series 15x7.5 Carbon Fiber Propeller Cw CCW 1575 Props Cons Tl2834 for Hexacopter Multi Rotor Tarot A Series 1575 Carbon Paddle Pros Tl2834 Pros And Cons Of This Section A Series Of Pure Carbon With Large Tilt Angle Paddle Roots Enhance The Overall Strength Weight: 20.2g/Pcs Main Hole Diameter 4mm, 3mm Diameter Side Hole Center Distance 12mm Length:15 Inch,Pitch 7.5,Main Hole Dia 4mm,Side Holes Dia 3mm,Center Distance 12mm