What Vince said. Learning to make your own band sets will enable you to experiment and save you a lot of $ over the long run. You will def. need a rotary cutter and a self-healing mat, along with a good steel ruler. A pouch jig really helps - you can buy one or make one (lots of Youtube videos on how to make a pouch jig). Form there, cutting the bands require some skill and you will have to practice. I started with SPRI exercise resistance bands - $10 for a pack of 3, in 3 different resistance. Look for the ones with latex. Although there are lots of better band material options, I still use the SPRI bands - it is what I am used to,