Heat shrink is used for various reasons. In this case they are used to dress cables and add strain resistance.
Polyolefin heatshrink tubing. Lined with thermoplastic adhesive which melts to provide a waterproof, corrosion resistant seal. Great for connectors, wire splices, breakouts, etc. Shrinks 50%. Comes in 4 ft. (1.23 M) pieces.. Black in color. This size is ideal for LMR-195 and RFC195, Group C Coax.
Polyolefin heatshrink tubing. Lined with thermoplastic adhesive which melts to provide a waterproof, corrosion resistant seal. Great for connectors, wire splices, breakouts, etc. Shrinks 50%. Comes in 4 ft. (1.23 M) pieces.. Black in color. This size is ideal for LMR-240 and RFC200 coax.
Polyolefin heatshrink tubing. Lined with thermoplastic adhesive which melts to provide a waterproof, corrosion resistant seal. Great for connectors, wire splices, breakouts, etc. Shrinks 50%. Comes in 4 ft. (1.23 M) pieces.. Black in color. This size is ideal for LMR-400 & RFC-400 coax.
