29"-42"w x 30"h, ready to install gate, fully assembled, no drill required, screwdriver friendly design, no parts to lose, special drywall screw design, no anchors needed, 1 hand operation, swing open door, easy to pass through, gate swings shut easily, no threshold design, no trip hazard at top of stairs, hardware mount, can be used anywhere within the home, top & bottom of stairs & between rooms, requires a flat mounting surface at least 3.5" wide.