Proergo Pneumatic Ergonomic Kneeling Chair | Fully Adjustable Mobile Office Product Features PNEUMATIC LIFT: With its pneumatic pump for increased height flexibility, your kneeling chair is now fully adjustable- so you can customize it to your perfect comfort level. Designed to naturally correct your posture, the ProErgo Ergonomic Kneeling Chair helps relieve workday stiffness from sitting too long in traditional office chairs MAXIMUM COMFORT: This ergonomic kneeling chair is designed to alleviate neck and back pain - without the added pressure on your knees and shins. Equipped with breathable 2.5" fabric cushions, this chair was made for all day cool comfort HEAVY DUTY: The ProErgo Ergonomic Kneeling Chair is designed with a strong metal base, so it?s constructed to last - supporting up to 250 lbs. COMPACT DESIGN: With its sleek metal base, this kneeling chair elevates any workspace. Featuring four full-swivel wheels and a compact frame, this ergonomic desk chair can be easily stored under your desk when not in use 5-MINUTE ASSEMBLY: With easy-to-follow instructions and all necessary tools included, this ergonomic kneeling chair can be assembled in just five minutes Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!