Easystand Evolv Stander, large provides a safe and supportive transition to standing, allowing the user to stand in three easy steps - adjust, transfer, and pump up. The open base of evolv standing system makes independent transfers easier. For individuals with enough range of motion (ROM) and full weight bearing on the long bones of the legs, the Evolv allows full extension at the hips and knees. For people with restricted range of motion (ROM), sit to stand offers the chance to stand partially weight-bearing and eventually advance to full extension.