1.Stackable resistance bs - These 5 stackable fitness bs with hle have different levels: yellow (10 lb), green (15 lb), red (20 lb), blue (25 lb), black (30 lb).It is ideal for improving strength flexibility.All exercise bs have a length of 120 cm / 47.24 inches.They can be used alone or in combination with strengths ranging from 10 to 100 pounds.2.Durable high quality - To ensure maximum durability safety during use, the resistance bs set is made of natural latex comes with a sturdy mountaineering metal buckle that will not fall down, rust, breaks or deforms Strong wear resistance perfect elasticity?The non-slip hle is comfortable very absorbent.The ankle strap has strong adhesion does not fall off easily.3.Personal gym at home - This training bs set includes five sports b rubbers, a door anchor, two padded hles, an ankle strap, a carry bag an instruction manual, allowing you to have a mBe able to carry out as wide a range of strength training as possible.Ideal for shaping quadriceps, gluteus maximus, chest, abs, biceps, triceps, shoulders, legs knees.4.Suitable for every fitness level - Whether you are a beginner or an expert, this rubber b fitness is for you.Multiple resistance systems mean you can adjust the intensity of the resistance b exercise to suit your personal goals.5.Multifunctional Portable - These fitness bs are small lightweight can be carried in the included bag.You can also bring elastic b fitness to the gym, office or even workout on the go!Suitable for all sports such as aerobics, Pilates, yoga, stretching, aerobics, warm-up gymnastics, physiotherapy weight loss, etc.