Even though the T-joints that come with your Adjusta-Stage are made from high-impact, composite plastic, they can be broken and/or lost. If that happens, how could you be expected to get your stage set up properly? If all you had were a T-shirt and a T-bone steak, you couldn't. Fortunately, now you can replace those broken parts with new T-joints just like the originals! Set of two (2).