Absolutely not!! You are free to use whatever set(s) of resistance tubing that are available to you. Our Elast-X bands are very versatile, however. You can find adequate resistance bands / tubing at any sporting good store, at a local Walmart or online retailer such as Amazon. The most popular designs outside of our Elast-X bands will have handles at the end of the tubing. If you're interested in Elast-X bands, click HERE.