Check it out here:
https://www.eastwood.com/qa1-shock-proma-c-o-s-adj-9-50-12-75-eye-p-eye-p-ds304.html
Proma Star Single Adjustable
With QA1's Proma Star single adjustable coil-over shock, you can easily adjust your compression and rebound valving and get the hard-core performance you need. One knob allows you to choose from 18 valving options that adjust both compression and rebound valving simultaneously, allowing total suspension control in one easy-to-reach location. Simultaneous Compression and Rebound Adjustment Coil-Over Lightweight Aluminum Ride Height Adjustable Spring Mounting Hardware Included 100% Dyno Tested and Serialized Revalveable and Rebuildable by the QA1 Factory or QA1 Authorized Service Centers American Made Precision Machined Aluminum Piston with PTFE Piston Band 5/8" Centerless Ground, Hard Chrome Plated, Solid Piston Rod Three Step Sealing System.