This gate locks shut with just a simple push and the gate can be used at the top of stairs, bottom of stairs, or between rooms. The double-locking system on the handle is easy for adults to use, but difficult for a child. The Indexed Sizing System (ISS) adjusts for a perfect vertical fit when walls aren't level and the Integrated Tuning System (ITS) allows for quick and easy width adjustments with pre-set index positions. The quick-release wall mount allows the gate to be removed and replaced quickly for high-traffic times or entertaining. The extra-wide 26 1/2 walkthrough allows for easy in and out access, and extends up to 40". Measures 30 1/2" H. Designed for children 6 - 24 months.