DRIVE BED M-RAIL #1222PItem no. 1222P Designed to provide support when getting into and out of bed and when moving from a lying position to a sitting position M shape bedrail allows for multiple hand positions to accommodate any user Multiple crossbars creates easy grip for any height use Easy, quick assembly Safety strap wraps around mattress or box spring to ensure a secure fit Special extra long safety strap enables user to be in a single, twin, double, queen or king