This is a package of two HQ 10x4.5R Propellers, in reverse clockwise rotation format, commonly used for aircraft in "pusher" configuration with rear mounted motors.
This product was added to our catalog on September 13, 2017
Monday, Aug 16 2021 (4 months ago)
HQ Prop Slow Flyer Prop Pusher 10X4.5R (2)
Why don't you just say clock wise (CW) instead of reverse clockwise rotation? it makes me think it's (CCW)