The TFCC is a complete kit for cleaning fiber optic cable end faces and optical bulkhead connectors. As time passes dust can gather on the surfaces of the fiber which can potentially cause attenuation of the signal or even damage to the laser. By setting up a cleaning routine you can eliminate this possibility and ensure a trouble free system. This kit also has an option to add the FOM-400 Fiber Microscope. The FOM-400 is a Precision Optical Microscope for inspecting the end face of fiber optic cables for damage or dirt.