fiber cold sub mechanical cold joint of L925b general type of bare fiber rapid cold sub L925b cold connection Product Name: optical fiber cold sub Use: bare fiber optical splice docking Scope: the diameter of 0.25 mm or 0.90 mm fiber Required tools: optical fiber cutter, coating stripping device, alcohol, cottonetc. Specifications: 5 / box Unit Type: lot (5 pieces/lot) Package Weight: 0.045kg (0.10lb.)