Retainer Cap, 38mm Light-Weight Cap Only For 38mm AeroPack Retainers Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Black Anodizing Large Quick-Turn Threads For Fast, Tool-Free Motor Change AeroTech®, Dr Rocket®: Just Slide Motor In And Thread On Cap, That`s It! (Aeropack)
