All of our units come with everything you need, but we offer even more! A note on the images: Any parts shown in gray are for reference only. They illustrate how this unit connects to a neighboring unit and aren't sold with this unit. Gray parts/units are sold separately. The single J-Hook is meant for attaching the rod and shelf together. Anchor this to the wall for extra support for your closet rod and shelving. All additional J-Hooks mount on the right. If you need a left and right J-Hook our Wall Mount Kit comes in pairs of J-Hooks. This is a great DIY project, wonderful for new construction or home remodel. Can be added to a single shelf or modified to an existing shelf. Its flat packed which allows for easy shipping. Straight forward design and simple hardware allows for very easy installation. Included With Purchase: All additional parts are single items & are designed to be integrated into a current system. These are not stand-alone products & are here in case you need extra support. You will need to purchase extra Hardware if you plan to add these to your Closet.