Most reliable sensor cable to be handled by many visitors ?

Hello,

For a project where several visitors would simultaneously have to clip a pulse sensor to their ear, I am wondering which kind of cable to use to connect the sensor to the microcontroller.

The cables will be split in two parts: a long, invisible and installed one and a short (3 meters) and visible one. This is especially for this short part which will be handled by the visitors that I am hesitating.

Either I'll go with flat ribbon cable which is very cheap, light (the sensor will be clipped to the ear) but easily gets twisted and keeps folds or I'll go with audio line balanced cable, which - if well chosen - doesn't keep traces of folds, is stronger but heavier.

Any opinion ?

Thank you in advance.