Description:It belongs to UY type wire conductors, which changed complicated traditional cable wire and connection method.Insert two conductors separately into two ports without stripping conductors insulation; Crimp or squeeze the yellow button onto the inside two conductors with pliers (here is not included.); Now you finished it!The gel-filled inside design an air-tight environment for conductors.Good quality and exquisitely design offer corrosion-resistant functions to protect the connection against air and moisture.Specifications:.