Multiplex RR Extra 330LX ModelThe Extra 330LX is the most uncompromising foam aerobatic model and is in no way inferior to its wooden brothers. We didn't skimp on the design or the components. For example, the wings have stable and wrapped, light carbon tube spars and the fuselage has a lasered and weight optimized M frame. As a result, the model achieves incredible strength and is predestined for hard 3D and XA flight style. Since the Extra can be controlled extremely precisely