Mul-T-Lock designs, develops and manufactures a broad range of innovative locking cylinders - both mechanical and electromechanical - that address the evolving security needs of institutions, businesses, and homeowners all over the world. A variety of special cylinder applications and features provide users with security and flexibility, including 3-in-1 cylinders, FleX Control (temporary lockout) cylinders, and the Construction Master cylinder. From doors to cabinets, Mul-T-Lock has a cylinder solution for all your security needs.