Vender TOPF Resistance Bands Loop Exercise Elastic Band Fitness Training Rubber Gym Yoga . al mejor precio

Feature: Color: Green /Blue /Red/ Red/ Black Can effectively improve muscle strength, physical mobility and flexibility. Improve athletic performance, to help treating a variety of chronic diseases. When you pull the elastic band from the beginning, the longer you pull,the bigger resistance you will get it. The size of elastic band is in charge of the muscle strength. Usage: Training for 2 to 3 groups, each group of training repeat 8 to 12 times. Take elastic band fixed on the fixed object of the ground, then form a ring. Lie on the training mat, keep the knees bending. Elbow straight and do sit-ups moves upwards, the shoulder blade off the ground Keep on and continue to do this exercise. Green:600mm*50mm*0.35mm strenghts 5lb Blue:600mm*50mm*0.5mm strenghts 10lb Yellow:600mm*50mm*0.7mm strenghts 20lb Red:600mm*50mm*0.9mm strenghts 30lb Black:600mm*50mm*1.1mm strenghts 40lb Package Includes: 1 X Resistance Band