PRODUCT DESCRIPTION The BRINKS Portable Door Security Bar in silver is a convenient choice for apartment doors or for various entries in your space. With its robust 20-gauge steel construction, this security bar for front door applications is durable and resists against forced entry. Its adjustable design expands from 25” to 43”, and works as a sliding door security bar or on a door with a door knob, making it a fit for both sliding glass door security bars and patio door security bar needs. Featuring a non-marring top yoke and pivoting padded foot, this security bar protects your floors and doors while protecting your home. The easy setup process requires no tools; position the bar under door knobs, levers or between sliding or hinged doors. Compact and lightweight, this versatile security bar works for home, dorm, or travel use. This BRINKS Door Security Bar is backed by a limited manufactures warranty. FROM THE MANUFACTURER The Brinks Home Security door jammer is adjustable in height from 25" - 43", the door jammer can increase your feeling of security in the home and fits both hinged and sliding doors. Brinks product is designed to keep your home, loved ones, and your valuables safe by exceeding rigorous testing standards and using the highest quality materials to provide you with years of worry free use. Lifetime warranty included.