Master Lock 265D Door Security Bar, Adjustable from 27-1/2 in. to 42 in, White Door bar is designed to improve home security on hinged and sliding doors as added fortification to prevent forced entry Door stopper adjusts from 27.5 in. (70 cm) to 42 in. (1.1 m) for application flexibility; Top piece is easily removed for use as a sliding door security bar Pivoting ball joint ensures door jammer has full contact with the floor and padded foot provides a strong grip without scratching Door bar is constructed with 20-gauge steel for strength and security Fits most standard doors and sliding doors, good for apartment security