Permits installation on both sides of the bed, up to queen size. Especially helpful when a person uses eitherside of the bed or in the case of couples where both need added assistance. The roomy pockets turn an ordinary bed into a convenientstorage area while providing support for getting in and out of bed. Comfortable to grasp non-metal handles can be used for repositioning and turning in bed. Easy to install, rails slide between mattress and box spring