This special combo pack includes three resistance levels - light, medium, and heavy - designed for all fitness levels and goals. The Mediband is made from multi-layered latex and is designed to enable training with progressive resistance, effectively conditioning the muscles for specific functional and athletic movements. The Mediband Light is ideal for muscle training and injury prevention. The Mediband Medium is perfect for strength and endurance training as well as promoting muscle growth. The Mediband Heavy is also excellent for strength and endurance training and for promoting muscle growth. It is ideal for improving flexibility, toning, strengthening, and promoting muscle growth. A user-friendly exercise guide helps maximize results. Made from premium latex for optimal comfort and durability.