Dang, I should have thought to mention it sooner. Oh, well, just $2.00!

What I've experienced: Their adhesive stinks for one (if there even is any!) and, the black at least, doesn't shrink very evenly. The end of the tubing tends to curl *up* away from the wire/whatever you are trying to cover, making it look ratty and defeating the purpose. I tried some from Home Depot once and it wasn't much better. My conclusion? Avoid the heat-shrink products that are the glossy kind. Find the stuff that has a duller surface, maybe from a local electronics house. It *will* be more expensive. I've gotten used to using over-priced "marine-grade" heat shrink like Ancor with lots more glue, but even adjusting for that I think the RS tubing stinks.