COMPLETE SET FOR PROGRESSIVE TRAININGThis set includes 4 resistance bands, allowing you to increase your training intensity. When stretched to 3 times their length, they provide resistance levels of up to 10 LB, 25 LB, 50 LB, and 75 LB respectively. PREMIUM NATURAL LATEXMade from high-quality natural latex, our resistance bands are stronger, more durable, and more elastic than rubber or TPE. This ensures a reliable workout experience that stands the test of time.