Used office desk, mechanism does not work

Used office desk. The lifting mechanism doesn't work. Suitable for a person of small stature or a child because the mechanism doesn't work. There are small scratches on the desk due to long-term use, but they are not noticeable.

The desk is disassembled.

Desk dimensions:
Width - 1600 mm
Depth - 800 mm
Height - 700 mm

Purchase price unknown :)
Self-pickup from the IKEA side.