A fiber splice closure protects spliced fiber optic cables from environmental and mechanical threats, ensuring stable network performance. The global fiber optic closure market is projected to reach USD 2. When wires are joined or fixed, the fibers exposed. There are hundreds of different designs and options on splice closures. Some are designed for concatenation of long distance cables where two identical cables are spliced together. 9 billion in 2025, reflecting the rising demand for network reliability.