This chair was purchased for my father and used less than 7 months. The chair retails for approximately $35,000. The active height is 12 inch & 14 inch power-adjustable. The seat height goes beyond traditional vertical only elevation. In addition, the chair has up to 20 inches of forward tilt. Active reach is the ultimate advantage in accessing your environment. Featuring 3 points of contact and 3.5 inch rearward center of gravity shift for added stability. Active height takes seat elevation to new heights and allows travel at up to 3.2 miles per hour elevated. The improved 7 inch caster design and adjustment free flutter dampening device means you will move more confidently at low speeds, in tight areas or even while using a variety of drive controls.
You can turn the way you want with full caster clearance even at 90 degree leg rest position. You can see FULL manufacturer description and video on the link below on the manufacturers website using the link below:

M3 Corpus