Double Band Combination Set 4 | 41" Loop Bands | 2 Each of 1/2" to 1 3/4" Bands | Resistance Range from 20 to 120 lbs each Combination Resistance Band Set 4 has resistance levels ranging from 20 to 120 lbs each Two #1 (1/2"), Two #2 (3/4"), Two #3 (1 1/8"), & Two #4 (1 3/4") Bands Great addition to any cross training program: CrossFit, P90, Extreme 30 Day Money Back Guarantee & a 1 Year Warranty Made from Natural latex Rubber using a continuous layering process