KOYO Adjustable Table Legs from Hafele operate on a step-by-step ratchet system with 15 settings 20mm (13/16") apart for a total adjustment range of 300mm (11-3/4"). The table legs are made of sturdy, epoxy-coated steel and have a static load capacity that exceeds 500 lbs. per leg. Available in a Black Textured or Silver Aluminum finish, these table legs are perfect for offices, laboratories, hotels, schools, libraries, healthcare facilities and for residential furniture too. Levelers, spacers and casters are available separately. There iis no sudden drop when height is lowered.