The Model 2025 and 2001HD are designed for home use. The 2025 has a steel handle that mounts to the included 30" x 27" board; simply slide it between mattress and box spring. Fits any size bed. Model 2001HD is a heavy-duty handle for people who have no or minimal ability to stand. It mounts directly to metal bed frames. Models 2025H, 4025H, 6025H and 8025H are designed for hospital beds. The first two are for spring-style beds; the latter for pan-style beds. They meet state and federal guidelines for entrapment and restraint-free environment. The 2001HD has a 600-lb. weight capacity. All of the other models have 250-lb. weight capacity. 4025H & 8025H come with 2 handles. No tools required for installation.