Mul-T-Lock designs, develops and manufactures a wide selection of innovative cylinders - mechanical and electromechanical - that address the evolving security needs of institutions, businesses and homeowners worldwide. Special cylinder applications and features such as the 3in1, the FleX Control (Temporary Lock Out) cylinder and the Construction Master cylinder provide users security and flexibility. For applications ranging from doors and through to cabinets, Mul-T-Lock has a cylinder solution for all your security applications.