4 Pcs Propeller Prop Nut Caps Fixed Adapter CW CCW for Emax MT1804 1806 Brushless Motor 4 pieces of the alloy propeller prop nut caps CW CCW in one set will be sold together. including red and black, made of durable hard alloy Suitable for Emax MT1804 1806 Brushless Motor Simple and practical design, easy to install and use 2 pieces of CCW adapter , 2 pieces of CW adapter