Runway Kit Designed with durable steel construction, black textured powder coated, providing strength and stability for long-lasting use Designed to secure ladder runway perpendicular or parallel to the 4-Post Distribution Rack Two sizes brackets, 1.25" and 2.50" J-bolts are made of 5/16", zinc plated Constructed of strong 12-gauge steel Secure straight sections ladder runway over 4-Post Rack RoHS compliant