Body-Bands 41" Loop Resistance Cross Training Band Set | Choose the Resistance Band Level Set that is Right for You | Choose from 3 Exercise Band Sets: Beginner (3 Bands), Intermediate (4 Bands), Advanced (5 Bands) | The 3 CrossFit Exercise Band Sets include either the 1/2", 3/4", 1 1/8", 1 3/4", or 2 1/2" Wide Bands. These top selling Power Band Sets are backed by our Manufacturer Warranty. Body Bands Resistance Exercise Band Sets are Great for Pull Up Assistance and Cross Training Workout Programs such as CrossFit, P90X, or Extreme. These Power Bands can also be used for Pull Up Assist, Strength, Speed, and Agility Training