Splice protection sleeves play a critical role in maintaining the mechanical integrity of fiber optic networks. They reinforce fragile splice joints, preventing bending, cracking, or breakage, especially during installation and cable handling. A protection sleeve is made up of three parts: An outer shrinkable tube made of heat shrink plastic, an inner tube or fiber tube where the fiber is placed. Fiber optic sleeves are an essential component of fiber optic cables that play a critical role in ensuring optimal transmission of light signals. These protective devices help to protect fiber strands from damage caused by physical stress, environmental factors, and other external factors that can. iFiber Optix Fiber Optic Splice Sleeves protect and reinforce fusion-spliced fiber connections — restoring the mechanical strength of the spliced fiber and shielding the splice point from environmental stress, physical disturbance, and long-term degradation.