Fitness band with 3 resistance levels: contains three different resistance fitness bands (light gray, gray, black), relaxed, medium and heavy. You can switch between these three levels depending on your fitness level and intensity of exercise, or use any resistance band in combination to achieve muscle gains or weight loss. QUALITY AND DURABILITY: The fitness band is made of durable, high-quality, environmentally friendly and high-quality elastic cotton-polyester materials. It has hundreds of elastic threads. Unlike latex / rubber bands, the resistance band does not slip during use, does not roll up or break, does not deform easily and the surface fabric can also protect the skin. Suitable for multiple sports: the best exercise tool can make all exercises easier. Different resistance bands are suitable for everyone. You can train different muscle groups such as legs, hips, waist, abdomen, chest, shoulders, back, triceps, biceps and thighs. Effectively improve body coordination or endurance and muscle strength and create a perfect curve. LIGHTWEIGHT AND PORTABLE: The resistance belts are lightweight, small and easy to carry and can be put directly into your gym bag without taking up too much space. Good for families, offices, hotels, gyms, outdoor, beach and travel. You can train anytime and anywhere and nothing prevents you from achieving your fitness goals. In addition, the product is suitable for men and women of all fitness levels, for pilates, yoga, aerobics, warm-up gymnastics, etc. Note: When you use, please exercise according to your fitness level and exercise intensity. You can give them to your loved ones and train with them.