8 Pairs of X-Over Bands - Up to 16 stations. Resistance Levels: 7 lbs, 12 lbs, 18 lbs, 25 lbs INCLUDES: 2 Pair of 7 lb X-Over Bands (Orange) 2 Pair of 12 lb X-Over Bands (Green) 2 Pair of 18 lb X-Over Bands (Red) 2 Pair of 25 lb X-Over Bands (Blue) 4 Band Holding Rings and Clips 4 Setup Straps 2 Travel Totes X-OVER RESISTANCE BANDS X-Over Resistance Bands are made in America and great for developing shoulder strength for any type of throwing motion associated with Baseball, Softball, Tennis, Volleyball, Swimming, Golf and other activities requiring shoulder stability. You will be able to perform all internal and external rotator cuff exercises often used to strengthen shoulder and back stability needed to increase arm velocity or to prevent injury often associated with rigorous Fitness Programs. HOW DOES IT WORK? Each X-Over Band can be used as a single band like our FitCord or they can be crossed over to form an X, as in the name. Due to the universal length, these can also be used for an unlimited number of exercises. Fantastic for all fitness programs, physical therapy and injury rehab applications. INDEPENDENT LABORATORY TESTED Our bands were tested by an Independent Laboratory and found to last beyond 150,000 repetitions before breaking. That's 15 X's longer than other competitors tested bands.