Package content: 400 pieces of high quality K1 connectors. Available diameter: applicable to conductors with an inner diameter of 0.4-0.7 mm. K1 type branch connectors can be compressed at one time, junction with organic silicon oil sealed, waterproof and antisepticize. Used to connect two wires safely and quickly. Convenience: UY connectors allow wires to be connected without the need for insulation stripping. Application: These UY connectors are used for connect telephone wires, data cables and other conductors. Product Description When wiring, it is not necessary to peel off the insulation layer of the wire, which solves the complicated operation problem of the screw connector. Features: Material: copper foil, plastic. Color: orange, transparent. Conductor diameter: 0.4mm-0.7mm. Contents: 400 K1 connectors.