Check the listing for details. Blade Prop Counter-Clockwise Rotation Yel (2): N BLH7621Y. Condition: New. Listed at 4.49 USD. The product is identified by the model number BLH7621Y, which is essential for ensuring compatibility and proper functionality of the RC model vehicle or kit. This high-quality prop is a crucial component for maintaining the performance and stability of the quadcopter or multicopter during operation.