Top Race Main Rotor Blades for Align and Titan Trex RC Helicopter Fiber Glass 325mm Set of 2 Main Rotor Blades for Titan, Trex 450, Trex 450XL , Trex 450S , Trex 450SE , Trex 450HDE , Dragonus II ,3DX-450 , HDX-450 , Walkera NO.39 , MX-450. Length: 325mm Material: Glass Fiber Color: White and Stripe