This rail can also be used with a bed that has a slatted base. It fits under the mattress and the metal loop sticks up at the side to provide a grab rail to help with getting in and out of bed safely. It can adjust to fit with a single or double bed.

It is important to follow the manufacturer’s instructions and make sure this equipment is secure.
If buying this yourself, ensure the particular rail is compatible with your bed. Should be positioned to avoid obstructing the person when transferring in/out of bed.
If pulling on lever from outside of bed, then need to strap to bed side.
Consider weight tolerance of equipment.
Ensure entrapment cannot occur. New bed levers have diagonal rail. Infill should be purchased for those rails without diagonal rail.