The ServoCity 1118 Series Open GoRAIL Bundle features a versatile design with T-slots on three sides, facilitating slide-and-lock construction for various structural and motion assemblies. The unique open slot on the fourth side is engineered to accommodate lead screw nuts, allowing them to protrude and be securely fastened to other components. This innovative feature makes it an essential component for supporting linear motion driven by lead screws. The bundle includes twelve pieces of the 1118 Series Open GoRAIL, each varying in length, providing flexibility and adaptability for diverse building projects.