Have 2 x fully ergonomic computer monitors with a revolve dual monitor arm. They can be clamp mounted, or grommit fixed.
Assemble the monitor arm column with your preferred mounting bracket, then fit it to your desk as per the instructions provided. Once fitted, attach your computer monitors, to the monitor plates. Then run your cables, and keep them tidy with the cable covers provided.
Monitor arms are easy to assemble if clamp fixing. If grommit fixing, furniture assembly experience is required, as a hole needs to be drilled in the desk for mounting.
More affordable from these guys than other web sites for same product. Arms have been great for two monitor ergonomic setup, no issues. Next day delivery from order.