Everything you need for the Kwik Kit assembly is included in one box. Railing Uprights are pre-assembled to save you even more time and eliminate the guesswork of installation. Kwik Kit railing kits are quick to assemble using a hex key to tighten the large, easy to use set screws. The pre-packaged kit comes with 6-foot post spacing for straight sections, corner sections or extension sections. By using a combination of Straight, Corner, or Extension Kits, most any basic railing requirement can be accomplished.