Wheelchair desks Our totally adjustable wheelchair desks come in two sizes of table top, two models: flat and tilt-top, and three adjustable leg lengths, so you can select the size and model that matches your needs and budget. You can adjust the wheelchair desk height without tools. Rifton Prone standers allow for physical development and greater social interaction — enabling clients to experience the world more fully while building strength for the future. Our Prone standers provide anterior support and stability while encouraging weight-bearing and use of both hands and arms. Fully adjustable, Rifton Prone standers can grow†with clients as their skills develop, allowing for increased weight-bearing over time.