The OEM Master Lock Dual Function Door Security Bar MLK265DCCSEN is designed for both hinged and sliding doors to resist forced entry. The top piece removes for sliding door applications, and the padded foot provides a secure grip without scratching. It features a pivoting ball joint that ensures full contact with the floor and can be adjusted from 27-1/2" to 42" to fit most standard doors and sliding patio doors. Constructed from rugged, 20 gauge steel for durability.