Quick Release Propellers. Features: Including a pair of propellers, one clockwise replacement propeller and one counter-clockwise replacement propeller. The 1360T Quick Release Propellers are designed to improve the performance of the Inspire 1 series at high-altitude locations. A larger propeller pitch delivers greater propulsion to the aircraft at altitudes with thinner air. These props should not be mixed with other models of propellers on the same aircraft. Compatible with Inspire 1 V2/PRO models.