Kaehler Core Starter Band SetThe #0 Orange band provides our lowest level of resistance and is great for light stretching, warming up, rehabilitation and shoulder activation. Bands #1 & #2 are best for general conditioning, rehabilitation, stretching, jumping, speed training, aerobics, and for lifters as assistance for the upper body to increase the resistance for bicep and triceps. Either band is great for beginners and light weightlifters. Both can be used to safely increase