<b>Feature：</b><br> <br> These resistance loop bands have different resistance, and you can switch between these loop bands.<br> <br> The set are 100% natural latex, with strong elasticity, latex is comfortable, soft, durable, and will not harm your skin. At the same time, they are washable but need to be wiped with a wet and dry cloth.<br> <br> This is a perfect gift for relatives and friends to build a healthy lifestyle together.<br> <br> You can easily take the fitness to the office, gym or travel.<br> <br> <br> <b>5 Level Resistance:</b><br> <br> Extra Light: 600*50* 0.35mm. Tensile value of 5~10lb;<br> <br> Light: 600*50* 0.5mm. Tensile value 10~15lb;<br> <br> Medium: 600*50* 0.7mm. Tensile value 15~20lb;<br> <br> Heavy: 600*50* 0.9mm. Tensile value 20~30lb;<br> <br> Extra Heavy: 600*50* 1.1mm.Tensile value 30~40lb.<br> <br> <br> <b>Package including:</b><br> <br> Resistance bands * 5<br> <br> Storages bag* 1<br> <br> Manual * 1<br> <br> Package*1<br>