This bidirectional gate permits pedestrian access in a railing system, helping you restrict traffic to run a safer operation. Used without a railing system, it provides a clear warning to pedestrians that they're about to enter a hazardous area. It's lockable when used with a mounting post (available separately). Warning decals are not included, but a 8-1/2" by 14" panel provides space for messaging to help you make communication clear. Made from durable powder-coated steel and tested to 1 million cycles, so it will provide long years of service. Adjusts to fit 21" to 48" openings.