4 small holes(dia.2cm) +1 oval hole(The major axis of the oval hole(inside wall) is 6cm,and the shorter axis of the oval hole is Heat Shrinkable type dome fiber closure with 144 cores Fiber Optic Splice Closure with 4 small holes(dia.2cm) +1 oval hole(The major axis of the oval hole(inside wall) is 6cm,and the shorter axis of the oval hole is 4cm)1.The optic fiber splice closures (fiber ...