The COREFX Power Tubes incorporate resistance training to help strengthen, tone and stretch your muscles!The Power Tubes are a resistance toner made from top-grade 100% natural latex for maximum durability and stretch. Available in five strength-tested resistance levels to provide you with a variety of options pending on your workout routine. Why You Need ItIncorporating the COREFX Power Tubes into your workout will help decrease the chances of injury, enhance your movement efficiency and increase your performance with compression tack and flossing. The Power Tubes help to improve movement range, restore joint mechanics, and release previously injured tissue while performing the actual athletic movement you are trying to improve.How It HelpsTHE COREFX Power Tubes encourage blood flow, which helps to increase circulation and warm up the muscles. These bands help relieve pain, speed up your recovery time, promote flexibility and increase your range of motion.What You Can Do With ItThe Power Tubes are such a versatile tool that can be integrated seamlessly with every popular workout program, such as stretching and strength training! These bands can be used as ankle resistance bands, knees resistance bands, legs resistance bands, thighs and wrists. This band is also great for larger athletes like powerlifters and strongmen when more compression is needed! HANDLE COLOUR DIFFICULTY RESISTANCE White Light 10LB Red Medium 15LB Blue Heavy 20LB Grey Very Heavy 30LB Black Ultra Heavy 50LB