Torso arm with locking ratchet-360°rotation. One Adjustable lever are easy to change seat height.PU Leather Medical Doctor's Stool Adjustable Mobile Chair. (2 Colors available, Blue, Black). Handle for Lift, Pneumatic lift seat height adjustable 18"-24". Adjustment Lever: A 360° "All-Around" pneumatic height adjustment lever that allows you to quickly adjust the pneumatic stool height from anywhere you reach under the seat. The sale of this item may be subject to regulation by the U. Food and Drug Administration and state and local regulatory agencies. 20-30 days to UK, Germany, French, Australia, Canada, etc, Over 30 days to other countries. Provided at the time of sale. We are not responsible for undeliverable/incorrect addresses. And we will work with you to resolve it to your satisfaction. We GUARANTEE a reasonable solution on all orders. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical, Lab & Caregiving Furniture\Dental Examination Chairs". The seller is "dentistlove" and is located in this country: US. This item can be shipped to United States.