Features:<br>1. 100% Brand New<br>2. High quality and durable in use<br>3. Easy to install<br>4. This Main Blades is specific Trex 450XL , Trex 450S , Trex 450SE , Trex 450HDE , Dragonus II ,3DX-450 , HDX-450 , Walkera NO.39 , MX-450.<br>5. Length : 325mm<br>Package size: 45 * 15 * 2cm / 18 * 6 * 0.8 in<br>Package weight: 330 g / 11.6 oz<br><br>Package list:<br>5 * Pairs 325mm Glass Fiber Training Rotor Main Blade White