This Shimano MicroSpline freehub is made of steel and thus its very robust and long living.
| Product name: | Spank Steel Micro Spline Freehub for Oozy/Spike Rear Hubs | 
| Manufacturer: | Spank | 
| Item code: | SPK509133 | 
| Activity: | Cycling | 
| Material: | Steel | 
| Shifting system: | 12-speed | 
| Freehub body: | Micro Spline (Shimano 12s MTB) | 
| Hub accessories: | Freewheel body (rotor) | 
| Model year: | 2023 | 
| Collection: | Full year | 
| Weight: | 163g | 
| Freewheel system: | Pawls | 
| Manufacturer page: | http://spank-ind.com/ |