The Deluxe Master's Package is the ultimate 12 in. and 20 in. band package. This is the "Holy Grail" of short bands, containing all the 12 inch. and 20 inch. bands including the #1 Mini, #2 Super Mini, #3 Small, #4 Medium, and the #5 Large bands. Any stretching, strength training, hand, arm, leg, foot, ankle rehabilitation exercise you can think of performing you will be able to do it these bands. This package was specifically made for doctors and athletic trainers who needed a host of different bands to chose from. This is the best value and the best short band package you can purchase from Iron Woody Fitness.