I have used Theraband latex bands for the last ten years and have found them to be superior to similar products. They are a good value for my patients and they hold their elasticity better than other brands. Theraband latex bands come in a variety of resistances to assist everyone from the geriatric patient to the elite athlete. I also recommend buying the plastic handles to make the bands easier to grip. I have my patients take these on vacation, when they will not have access to a gym facility.