PERCH Polyurethane Sit Stand with Stationary Caps | Workbench Height (21 to 31 inches) for Standing Desks and Production Lines | 300 Pound Capacity PEAK PRODUCTIVITY: The Perch Sit Stand combines the best features of chair and stool for a seat thats perfect for standing desks and workplaces involving a lot of upper-body movement. Its an ergonomic solution thats sure to help keep weight off of your feet for long enough to make a difference. BUILT TO KEEP YOU IN ACTION: In addition to being right at home in a hardworking environment, this Sit Stand features one-touch seat height adjustment, and a one-touch seat tilt adjustment lever that allows for an angle of between 3 and 11 degrees. A self-sealing polyurethane seat and reinforced 5-leg nonskid base build stability into your working posture. FOR A MORE ACTIVE OFFICE: Using a Varidesk or a height adjustable work bench? The Perch Sit Stand allows easy access to high counters and standing adjustable desks as well as it does in industrial settings. DURABILITY IS AN ABSOLUTE MUST: Weve seen other chairs fall apart almost out of the box. Bad welds, cheap casters, poor cylinders  theyll do your chair in quickly. Thats why we place so much importance on build quality. The Perch Sit Stand employs reinforced fiberglass nylon and steel to make sure you can trust your stool for years to come. In addition, our commercial grade vinyl is antimicrobial, stain resistant, and sourced in the USA. WARRANTY FROM SOURCE MEDICAL EQUIPMENT: We promise to offer the very best quality and craftsmanship, and we guarantee it with a 12-year warranty on parts and a lifetime warranty on cylinders.