The 4N1-S fits most 13" - 32" flat panels up to 40 lbs (18.1 kg) and is the ideal mount for those looking for an easy-to-use small mount with tilt, pan and swivel capabilities.

The 4N1-M fits most 23" - 37" flat panels up to 80 lbs (36.3 kg) and is the ideal mount for those looking for an easy-to-use medium mount with tilt, pan and swivel capabilities.