You get the genuine original Ajusto part shown.May have chips but not cracked.
This is the knob for the back rest height adjustment.
I also have the lower under the seat backrest level knob listed on eBay you can find by searching this item number in the search bar: 185590186997
Not easy to find so grab it while you can.
See all pictures for more details as you will be receiving one random one in the pictures.
- Thanks!
B-31