Series 100 Adjustable Stair Rail Kit contains the Top Rail and the Bottom Rail of the rail section. The rails both have toggles at every baluster position that allows the rail section to pivot to meet the required stair angle. The Baluster Connectors to mount the balusters to the rails are factory installed on both these toggles. The Adjustable Stair Rail will accommodate rail angles from 0 degrees level to a 36 degree maximum. Also included are Two Top Rail and Two Bottom Rail Pivoting Adjustable Stair Rail Post-to-Post Mounting Brackets, Support Block Material and Hardware for mounting the rails to any AFCO Aluminum Afco-Rail Post. Please note that Balusters are not included. Series 100 Baluster Kits are sold separately.