Bomar hatch with style A-external hinge. Anodized heavy-duty aluminum frame is durable within marine environments. Hatch features extra high sealing lip on base, heavy-duty acrylic top, and heavy-duty hinges. No sharp corners to snag lines or sails. Quick acting, adjustable tie down dogs. Locked vent position. 1-1/2" height above deck. Measures 10-11/16" x 10-11/16".