66 inch long Bunk Ladder with 1-1/2 inch opening is made of a high strength aluminum alloy, this ladder will support up to 300lbs. Has no external fasteners visible since it is a simple hook (made of engineering grade nylon) that goes over the edge of the bunk. Beautiful finished appearance with no screw heads, etc. showing when the ladder is taken down during the day. Anodized satin finish on rails and steps, and the steps are padded to prevent slipping, and provide a warm, cushioned feel. With simple, rugged construction, all parts are finished to avoid snagging clothing, and eliminate any physical danger of cutting or scratching. Has no slip, no mar bumper pads on bottom of the ladder rails. Dimensions: 66 inch Overall Height x 13 inch Wide with 1-1/2 inch Opening. 1 per package.