Mounts between seat and flat mount surface, or pedestal top, to provide front lever operated fore and aft sliding of seat. 110mm of movement in 10mm increments. Extruded aluminium top and base channels, Delrin slides and stainless steel lever arm for anti-corrosion use.

The longer plate is designed to fit to your chair or seat,  while the shorter length plate suits a flat base or existing pedestal.