The Guard Dog door keeper is constructed from durable 20 Gauge steel, enhancing security for both hinged and sliding doors. Its robust design effectively prevents forceful entry, providing reliable protection against even the largest intruders. The door bar features an adjustable system, allowing it to slide and fit most standard-sized doors, ensuring versatile and secure installation. Constructed from robust 20 gauge steel to ensure strength and security Dual functionality - provides protection against forced entry for hinged, patio and sliding doors Compatible with most standard doors and sliding patio doors Adjust the bar length effortlessly by using the release button, no tools are necessary Easy to store and perfect for travel due to its portable and compact design