* 【Latex】 * 【Natural and Durable】Our pull up assistance bands are made of 100% natural latex from Malaysia, which makes resistance bands soft and odorless. The resistance bands can remain high elastic after years of training and exercising. * 【Multifunctional for Workout】Adding resistance and weight to your workout with the workout bands makes exercise more effective.These exercise bands is ideal for pull up assistance, adding resistances to press-up, speed training, bench press, squat, shoulder press etc.