Description: -One of the most breakable parts on the MCX is the set of shoulder pin supporting the lower blade grips on lower head center. The Precision CNC Lower Head is designed to greatly reduce the chance of breaking the shoulder pins by machining the whole head block with strong aircraft aluminum material and thus strengthening the lower head as a whole. It is designed to improve head performance on EFLITE MCX helicopters. -Silver annodizing version. Includes: -CNC Aluminum lower head block Requires: -Loctite (#242 is recommended) -Assembly Weight: 0.1g Usage: -EFLITE MCX helicopters Instruction: -Included in the package. Features: Precision CNC machined aluminum. Strong aluminum parts to greatly reduce the chance of breaking of the shoulder pins. Designed light weight, strong and stylish. Replace stock lower head.