Accessory for the Craftsman® VersaTack trackwall rail storage system that create a flexible and convenient storage in your garage or other parts of your home. It seamlessly combines multiple rails installed end-to-end and they help to keep rails aligned and leveled. It includes 4 joiners that can connect up to five rails. They will add strength to joints between rails creating a seamless look. Easy to install, they slide into the grooves of VersaTrack rails without tools or hardware. This product is backed by a 1-year limited warranty.