The Tecline Aluminum Backplate is made from a single 3mm thick aluminum sheet, this backplate features expertly beveled and rounded slots to protect strap webbing from wear. With convenient holes and slots, you can easily attach wings, soft backplate pads, weight pockets, and other essential diving gear. Plus, the backplate can be used with a single tank adapter (STA) for added convenience in single or twin tank diving. Keep in mind, the price listed is for a single Tecline Aluminum Backplate and requires a harness for use. However, backplates with pre-installed harnesses are also available for purchase. Invest in the Tecline Aluminum Backplate and enhance your diving experience today.