Warranty 15 Year limited warranty on all non moving metal parts. Swivel mechanisms, pneumatic cylinder, plastic parts, base and casters for 5 years. Upholstery fabric against wear and deterioration for 3 years. To make a warranty claim, contact Parts Department. Provide model number and description of the problem and obtain return authorization. At it’s option Office Star Products will: (a) Supply compatible components of current manufacture. (b) Repair the customer’s component. The customer must prepay freight on any components returned to the factory. Return freight on components still in warranty will be paid by Office Star Products. This warranty will not cover labor, freight or damage caused by neglect, abuse, mis-use, alterations, or damage caused by shipment, fire, or flood. All warranties are limited to the original purchaser for normal commercial usage defined as a standard forty hour work week by persons weighing 250 lbs. or less. When usage exceeds 40 hours per week, a two year warranty on all parts applies. Fabric is warranted for one year. Our quality standards are among the highest in the industry. Sometimes, no matter how hard we try, there are times when parts are damaged or missing. Our Parts Department will do everything possible to promptly remedy the problem. Contact us via email parts@officestar.net, by Fax 1-909-930-5629, or toll free parts number 1-800-950-7262, Monday through Friday 8:00 a.m. - 5:00 p.m. Pacific Time