There is a lot of tubing - 40', and in a variety of sizes. However, the sizes indicated are a little misleading in reference to standard cylinder/pipe/tube sizing. I knew this would be thin wall, and aware of its shrink ratio, but I needed a one inch tubing. I figured I would just stock the rest for other projects. The 1"  and other sizes the description refers to is actually half of the circumference (pressed flat and measured across the width- it is not a 1" diameter measurement, it is actually less than 7/8" in diameter.  So I did find some other tubing with a true as described 1" diameter. Now I have a bit more to stock for another project. And chalk these up as knowledge learned. They do work properly and at a fair price at .30 a foot. Just be aware of the non-standard size if it is essential.