The Grainger 14N947 is a 14-inch diameter, 3-blade, aluminum propeller for small unmanned aerial vehicles (UAVs). It has a pitch of 4.7 inches and is designed for electric motors with a power range of 100 to 250 watts. The propeller is made from durable 7075 aluminum alloy and uses a low noise profile blade design. With a weight of just 1.76 ounces, it provides high thrust while minimizing weight. The propeller comes with a 5mm prop adapter and is compatible with many small UAV frames using brushless motors. Overall, the 14N947 is a lightweight, efficient propeller well-suited for small UAV builds.