1. It can fix the mattress in place to prevent it from sliding around while you sleep
2. It is suitable for most standard-sized bed frames with a height of less than 2 inches and a width of less than 1.5 inches
3. The polished screws can protect the mattress from scratches and are safe to use
4. Installation is very simple
5. It is made of durable steel and is strong enough to maintain its shape under force
6. Packaging list: U-shaped frame x 2; adjustable spacer x 4; screw, bolt, nut and washer x 8