Full pack of 7 bands, one of each size. Micro #1 – 8 pound, Mini #2 – 25 pound, Monster Mini #3 – 35 Pound, Light #4 50 Pound, Average #5 – 75 pound & Strong #6 – 100 pound and Monster #7 – 150 . – 20 years experience in rubber band strength training- No Bonding, moulding or seams are used. – Bands are built in layers on mandrels with no seams for potential breakage. They are backed by full 1 year warranty – 41″ long.