PART NUMBER :  BCX4006 DESCRIPTION : This is the optional Tall stable aluminum Upper Rotor Head Set for the Blade CX (also work with E sky Lama 2) FEATURES: Improves strength of stock inner shaft and stock plastic main rotor hub Added blade clearance (6mm) to minimize interference Bigger, stronger steel spindle shaft and new steel inner shaft All screws and Allen keys included for Blade CX and Lama 2 Precision CNC aluminum main rotor hub INCLUDES: -CNC aluminum main rotor hub -Steel spindle shaft withTwo Collars -Steel innershaft REQUIREMENTS: -Loctite (recommend #242) all the screws. Installing on Center Hub following instructions in manual MANUFACTURED BY: X Spede