Theraband 3 Resistance Band Set, Advanced. This pack includes blue, black and silver resistance band and detailed exercise instructions. A no.1 physical therapist brand. These bands build strength, improve flexibility, and boost recovery. Elevate performance and accelerate recovery. Great for stretching and resistance movements to increase range of motion. Proven as effective as dumbbells and weight machines for increasing strength. Perfect for those with latex allergies or sensitivities.