State-of-the-art modular rack armor system that is as flexible as you need it to be. Available in two profiles to fit 3” x 3” and 3” x 1-5/8” rack uprights. Each 9” tall YELLOW JACKET section is stackable, allowing you to determine the optimal amount of protection for your warehouse racks and equipment. Specially designed to utilize tension to lock into place and includes a secure strap to keep it fastened to the rack.