Key Features: High-performance, efficient design with quick assembly time Injection-molded, high-strength plastic 28mm 5-blade rotor design Uses 10mm brushless motor Overview:E-flite's Delta-V 180m 28mm EDF (EFLDF180m) electric ducted fan unit is an ideal choice for products such as E-flite's UMX MiG 15 and other similar sized ducted fan airplanes. The Delta-V 180m 28mm EDF is also an ideal choice for ducted fan airplanes requiring 28mm diameter fan units. The BL180m Ducted Fan Brushless Motor, 11,750Kv (EFLM30180mDFA) is purpose-built for this Delta-V 180m 28mm EDF and both products will provide great performance.This product is not intended for use by children under 14 years of age without direct adult supervision.