The AutoLock Pressure Gate Model PG-20 is the perfect gate for high traffic areas. The features include: Center door opens with one hand operation and automatically locks when closed. The PG-20 is simple to install: can be operational in minutes (no screws necessary). The PG20 has four rubber coated pressure pads that protect your wood molding which allows quick removal to mobilize and install in multiple locations. The four rubber coated pressure pads protect your wood molding. This sleek, rugged steel construction gate is available in white, black and brown. The PX5 5 inches and PX10 10 inches extensions are sold separately for PG20. Dimensions: Height is 29 ¾ inches Fits openings from 28 ¾ inches to 33 ¼ inches 5 inch and 10 ¼ inch extensions are available The PG-20 is not recommended for top of the stairs.