Features: 

1) All European country telephone plug casing are made of ABS material 

2) The contacts are nickel plated 

3) The modular jack contact spring are made of copper alloy with gold plated surface 

    of 3U", 6U", 15U". 30U" or 50U" 

4) The modular jack can be 6P2C, 6P4C, 8P2C, 8P4C, etc.