All metal, heavy duty phono plug with cable clamp or chuck type strain relief as well as Phono receptacle for PCB mount

Phono plug with gold plated contacts, black shell, rubber boot for best antikink protection, chuck type strain relief for cable O.D. 4 to 6mm, color marking ring

 
This is the red version, but also available:

*: 0-Black, 4-Yellow, 5-Green, 6-Blue, 9-White