11 Piece Exercise Crossfit Fitness Set Resistance Bands Training Features: Resistance bands are elastic bands made of latex tubing used for strength training. They are lightweight, portable and space saving exercise equipment. Designed to effectively building muscle strength and tone the body, there are resistance bands for a variety of exercising that specific muscle groups. Its single dipper latex tube, the natural latex is over 99.998% free of soluble proteins ( latex allergens ). Str....