1、Aluminum Alloy: These trailer ladder racks are made of excellent aluminum alloy, light weight, with oxidation finish, wear resistance, erosion resistance, and suitable for various installation environments 2、Stainless Steel Bolts: The bolts are made of 304 stainless steel, sturdy and rustproof, making them suitable for outdoor use; Spare parts with half thread (unthreaded 2.5 inch / 6.4cm, threaded 1.8 inch / 4.6cm) 3、Sturdy Structure: The trailer ladder rack is finely welded to ensure the stability and strength of the load bearing structure; 200lb dual rack load capacity to meet your basic load requirements, with strong practicality 4、D Buckle Design: The enclosed trailer ladder rack is equipped with D hook design, providing you with convenient buckle points to help you easily fix and lock the ladder, ensuring better security and stability 5、Applicable Range: Supporting side mounting, suitable for exterior or interior ladder loading on most enclosed trailers and some open trailers (with sufficient height of wall studs), improving security, saving time and effort Item Type: Trailer Ladder Rack Material: Aluminum Alloy Size: Approx. 23.5 x 3 x 26cm / 9.25 x 1.18 x 10.23in Load Capacity: 200lb Mounting Type: Strong Grip Application: Side mounting, suitable for most closed trailers and some open trailers (where the wall stud height is sufficient), for exterior or interior ladder mounting 4 x Trailer Ladder Racks 4 x Barrier Strips 8 x Elastic Ropes 18 x Bolts