SPACE Meridian Work Stool by Office Star. Finally, all the comfort and support of a mesh chair in a drafting chair package. The Office Star SPACE Meridian Work Stool offers all the ergonomic support and the AirGrid mesh back at a fraction of the cost. Ships ready to assemble. Features & Benefits AirGrid screen mesh backrest with Built-in Lumbar SupportPneumatic seat height adjustment Office Star Warranty Office Star General chairs are warranted from the date of purchase against failure due to material and workmanship as follows: 2 Years on all non-moving metal parts. 1 Year on component parts including control mechanisms, pneumatic cylinders, wood, plastic parts, base and casters. 1 Year on upholstery fabric and foam against wear and deterioration. We cannot warrant leather against routine scratching and scuffing, as all leather is subject to minor blemishes in use. All warranties are limited to the original purchaser for normal Residential usage by persons weighing 200 lbs. or less. This warranty will not cover labor, freight or damage from misuse, abuse, negligence, alteration, accident, vandalism, rusting, acts of nature or any other event beyond the control of Office Star Products. The warranty does not cover cosmetic damage that may result from normal use. Liability for incidental or consequential damages is excluded. The user assumes all risk of injury resulting from use of this product. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. For complete warranty information you can view the complete Office Star Warranty.