Heavy-duty steel with powdercoat finish provides long-lasting security. Handle folds done for easy storage and portability. Base fits between mattress and box spring. Safety strap secures base to bed frame and mattress. Foam grip handle is comfortable; closed cell foam is easy to sanitize. Fits on either side of bed and adjusts in height to fit your mattress. Base measures 16"W x 21"eL, strap adjusts up to 12"4". Handle width 16½ x 2". Handle height 22". No assemble required. Free 4 pocket organizer pouch included.