Sorry for the delay in my reply. I didn't notice it on the page. I got my clear heat shrink tubing on eBay.com. You can get a bunch of different sizes up to ones you could use on 2/0 or 3/0 cable. Or little tiny one that you would not use for labeling. I think I used mostly 1/4", 3/8", and 1/2" for most wires and bigger for the big cables. Unfortunately I wish I had started using it sooner in my big rewire project. Some of the others I did have already come off and the previous owner's ones have faded out and/or I can't read his writing, or they have just fallen off. I really like the heat shrink and I already had the labeling machine. I used mostly 1/4" TZ tape but that is what I had. It would work down to 14 ga really well. I changed font sizes for the smaller wires. I also put as many labels on at a single printing as the machine would add a lot of blank tape on either end of each print.

Howdy, I saw your comment about labeling wire with clear heatshrink. Could you share your source? Thanks, Ed