BUNDLE PACK OF 4: Our new PRO Bands come in a set of 4, including 2 leg bands measuring 2"W x 40"L and 2 arm bands measuring 2"W x 26"L, plus a carry bag for convenient storage. This complete set is designed for occlusion training and provides effective restriction to the targeted muscles during exercise. The bands are engineered to help reduce oxygen flow to the muscles, which may pre-fatigue slow-twitch muscle fibers and enhance response to training loads. INCREASED MUSCLE GROWTH POTENTIAL: Research indicates that resistance training can support muscle protein synthesis, NOS-1 expression, and mTOR signaling, contributing to muscle growth. Some studies suggest that tourniquet-style training may support muscle development and help reduce myostatin levels, potentially enhancing muscle gain. BUILD LEAN MUSCLE AND IMPROVE TONE WITH LIGHT RESISTANCE: Occlusion training with these bands allows for low-load hypertrophy, typically using 10-30% of 1RM. When used with light loads, high repetitions, and short rest periods, results may be comparable to those achieved with heavier loads (around 80% of 1RM). These bands offer a way to build lean muscle and improve tone without heavy weightlifting. DURABLE AND COMFORTABLE DESIGN: Featuring a strong elastic construction, quick-release buckle, and an elastic loop to manage excess length, the PRO bands are easy to secure and remove. They provide a secure, comfortable fit during use. The set includes 4 bands—ideal for both arm and leg exercises—and maintains its shape and elasticity over time.