Ideal for flexibility and strengthening exercises, this set of heavy-duty resistance bands helps to improve agility, increase speed, enhance balance, and strengthen speed, technique, and body parts, There are so many great exercises you can do with this tool Specification : - Material : Latex - Color : Black - S---Fit for weight : 47.5-57.5 kg/104.7-126.8 lbs - M---Fit for weight : 57.5-67.5 kg/126.8-148.8 lbs - L---Fit for weight : 67.5-77.5 kg/148.8-170.6 lbs - XL---Fit for weigh t: 77.5-100 kg/170.6-220.5 lbs - Different sizes are suitable for different weight ranges, please choose the right size according to your own weight Q & A : How high is the ceiling suitable for? Our heavy duty elastic bands are suitable for ceilings from 2.8 m upwards, if your ceilings are higher please purchase our longer daisy cords to meet your height requirements Is there an age limit? Better 10 years old or older Any restrictions? You can use it up to 47.5-100 kg/104.7-220.5 lbs Package Includes : 1 x Bungee Resistant Band Tips : 1. Manual measurement,there will be 1-3 cm error,please understand 2. Due to light and personal differences in color understanding,there will be small color difference,in kind prevailMulti-Purpose : It's perfect for yoga, Pilates, soccer, MMA, fencing, swimming, soccer and basketball athletes, and whether you're doing aerial training or other strength training, the bungee straps have you covered. Easy to Install : Easy to set up indoors or outdoors, choose to fly in your home, gym ,backyard ,studio, it can help to improve your speed, agility, and core strength. Breathable waistband : The elastic waist belt is thickened and widened to minimize friction between the legs and the belt, and is designed to be breathable to avoid heating up due to over-exercise. Strengthening Training : Ideal for agility and weight training, the bungee cords help improve your agility, enhance your balance and take your physical skills to the next level, perfect for bodybuilding. High-Strength Elastic Rope : The bungee cords are made of high-strength and high tenacity latex material, one-piece molding, anti-breakage, no splicing, wear-resistant, soft texture, please choose the right size according to your weight.