Great loop resistance bands for strength building. I got these bands for leg workouts...I like that there are multiple strength hardness bands which helps when I use it as a starter. They also last for long...I used my bands for approximately a week and they are not worn-out yet. #liveinfinitelyhttp://www.amazon.com/Resistance-Live-Infinitely-Crossfit-Workouts-/dp/B019V0I6TQ/ref=sr_1_1?ie=UTF8&qid=1458377540&sr=8-1&keywords=rubberizedish+bands