Weather Proof Fiber Optic Splice Closures made of excellent engineering high-strength engineering plastic ABS or PC. Bwinners Fiber Optic Splice Closure has good performance in protecting fiber cable splicing and joint in straight-through and branching applications. Fiber Optic Splice Closures are applications in aerial, direct-burying, underground. Bwinners supply different fiber optic splice closures, which vary in cable ports, fiber capacity, fitting installation methods. In general, with the physical appearance, Fiber Optic Splice Closures are inline (horizontal) type and dome (vertical) type.