The Auto-Lock Gate A great gate for high traffic areas. The Auto-Lock Gate features a patented latch that allows rapid pass-through in either direction. Simply pull and twist the latch to open and to close, just swing the gate shut. This gate has quick and simple installation. The Auto-Lock Gate is constructed of aluminum, which is lighter weight than steel and rustproof. The powder-coated finish provides a long lasting easy-to-clean surface and is available in White and Black. 26.5" - 40.5" x 29.5"