Ball Bearing 4x9x2.5, 1 pcs
This is a replacement Compass Model Belt Guide Wheel, and is intended for use with the Compass Atom 7HV helicopter.
Graupner Electro Prop 12x6L
A new series of propellers from Graupner designed specifically for electric powered airplanes and multi-rotor 'copters.There is an exact same size propeller for rotation in the opposite direction. These propellers are therefore ideal for counter-rotating setups.
Graupner Electro propellers are light-weight and have a low resistance profile. They are produced from carbon reinforced plastic, providing excellent torsional strength for electric applications.