Locking rails rejoin split hopper and mag roller sections by wrapping around the hopper flanges. Black in color, the rails visually blend with the exterior of the cartridge, masking seams and jagged edges. Static Control offers three types of locking rails to fit the needs of your EX remanufacturing operations. Choose from short or long reusable, stainless locking rails designed for repeated use, or choose our one-time-use plastic locking rail for your one way cartridges. Use locking rails with Static Control EX RapidSeal Split Hopper Seals or EX OneStep hoppers.