SitnStand offers a line of products that allow users to easily transition between sitting and standing positions using their existing chairs. Their Classic model is for use around the home, patio, or yard, while the Compact model is portable for use in other locations. They also offer a wheelchair model that attaches to wheelchairs. All models are powered by rechargeable batteries, support up to 400 pounds, and make it possible for users to sit or stand independently anywhere.