Watermelon headphone cable is a 4 core headphone cable sleeved in two colour shifting nylon sleeves from amp end to headphone end and can be modified with anything from wire type, length and connector colour
(the 4 strand braid is available in the archive cable section)
 
Main body 6mm
Headphone ends 4mm
Wire type- ofc, occ copper litz, occ silver plated copper litz or pure silver
Headphone type- Any full size double sided entry
Flexibility- 10/10 
Colour- Green/ red
Connector colour- Any