Description:   -The CNC Main Blade Grips are designed to replace plastic stock blade grips on the Blade MSR.  The product is 100% aluminum CNC machined to provide best precision and durability.  The light and stylish high quality aircraft aluminum blade grips brings more stability to the  E-FLITE Blade MSR helicopters.  One of the best features of the main blade grips is that it is redesigned so that the blades are able to fold in to reduce the load force of the impact thus reduce the chance of breaking blades.  It is compatible with stock plastic innershaft, main rotor hub, main blades stock. -Silver anodizing version. Includes:  -High quality aluminum blade grips-Two (2) CNCed Aluminum balls.-All hardwares  included. Requires:  -Loctite (#242 is recommended)-Assembly Weight:  0.5g Usage:  -E-FLITE Blade MSR only Instruction:  -Included in the package Features: 100% Precision CNC machined Aluminum  Direct replacement of the flexing stock blade grips Strong aircraft aluminum material for better stability. Very light weight and stylish design