Heat shrink tubes is one of the most effective tools you can have for organizing and protecting electrical cables. It is manufactured from cross linked polyolefin material. This type of tubing is often used in military, industrial, and commercial settings. By fitting around your electrical cables and then heating the tubed area with a hot air gun, the tubing shrinks to fit your cables. https://www.galathermo.com/heat_shrink_end_caps/cable_end_sealing_caps/heat-shrink-tubes.html