IMPROVE PERFORMANCE: If you’re an athlete in any sport that requires shoulder strength and mobility, like baseball, swimming, golf or weightlifting, you’ll notice a significant increase in throwing power, strength overhead and shoulder stamina. That’s why we’re trusted by 20 MLB teams, 10 NFL teams and many PGA golfers. READY TO USE IMMEDIATELY: You can start reducing pain and maximizing shoulder performance right away. The pair of Crossover resistance cords can be mounted to an appropriate anchoring point using the unique handle to carabiner configuration. The cords are also fully compatible with Crossover Symmetry’s Door Belts, Squat Rack Straps and Wall Mounts (sold separately). DESIGNED FOR SAFETY: Crossover Symmetry resistance bands are wrapped in a high strength protective sleeve, that protects you from getting injured if the band snaps during use.