The Trex Transcend Railing system reflects a thoughtful design where appearance and quality are paramount. The 67.5 in. Gravel Path Top & Bottom Rail Kit offers a modern look that keeps this railing style clean and unfussy. All you need for each 6 ft. horizontal section is the 67.5 in. Gravel Path Top & Bottom Rail Kit, then you can mix and match with any of the Trex Transcends balusters (sold separately).