– Soft latex material for comfort, easy and safety use. – The buckle can increase more elastic ropes to strengthen resistance. – Explosive power as you take your physical skill to the next level. – It is very usefull to get fit, lose weight, gain muscle, get stronger and achieve your fitness goals. – Can use a wide range of personal exercises to enhance leg, back, chest, shoulder and core strength. – Adjustable waist strap great for waistline 28.7″ to 41.7″, adjustable ankle strap fits for most person. – To enhance the leg strength of any squat action or participate in any movement to promote jumping, speed and strength, build strength – Playing a very positive training role in training, such as boxing, fencing, basketball, soccer, tennis, track and field sports training. Material: High Quality Natural Latex. Product weight: 1.87 lbs/ 850g Package Included: 2 x Leg resistance ropes. 2 x Arm resistance ropes. 2 x Adjustable ankle straps. 2 x Wrist straps. 1 x Adjustable waistband. Attentions: The images may exist a little bit color difference due to camera and computer resolution. Product Size due to manual measurement, data have 1-3 CM error, which is a normal phenomenon, hope you can understanding.