- Cut and Bend.
They will prevent shrinking of tubing in tight spaces.
Available at most electronic or hardware stores (chains). You
will have to cut them about 2/3 the way from the tip, removing
the "heads." Then, you will bend it, so that the more
narrow tip AND perhaps the opposite end will fit as well inside
of CUT pieces of heatshrink (meant to eventually be fitted over
the completed solder joint) to prevent the yet unshrunk tubing
from shrinking due to the heat of the soldering process.