The Grainger 14U084 is a 14-inch diameter, 3-blade, aluminum propeller for small unmanned aerial vehicles (UAVs). It has a pitch of 4 inches and is designed for electric motors up to 400 Kv. The propeller is made from durable, lightweight 6061 aluminum alloy and uses a low noise profile. With a max power rating of 550W, this propeller works well for UAVs weighing 800g to 5kg. The propeller comes unbalanced and will need to be balanced before use. Overall, the 14U084 is a good general purpose propeller suitable for a range of small UAV applications.