ELZU.US Exercise Resistance Bands, Stretch Straps for Pull Up Bar, For Gym Equipment & Home Power Tower, Workout, Fitness & Physical Therapy, Black, 41" in length, 7/8" wide, 25-50 lbs COST-EFFECTIVE: Exercise bands only cost a small fraction of what standard gym exercise equipment does. They're significantly cheaper than what machines and weights would cost in a gym. They require no expensive shipping, and can be used in almost any room. EASY TO USE: Great for beginners and professionals. To work all muscle groups. For legs, shoulders, arms and hips. Our resistance bands allows you gain muscle and always be in great physical form. DURABLE AND STRONG: The rubber material is sourced from latex, so it's extremely flexible. The elastic bands also have the ability to resist breakage. They are quite strong considering their light and compact design and can be used by people of all fitness levels. PORTABLE AND LIGHTWEIGHT: Elastic bands can be easily carried in pocket, bag, or backpack. They can be used in almost any type of room or outdoors. Both for individual and group exercises. MULTI-FUNCTIONAL: Resistance bands can be configured to a variety of different workout techniques. They work perfectly as an effective alternative training method, and are suitable for people who are seeking a gentler resistance workout not involving bulky gym equipment and ankle weights.