70% polyester fiber + 20% rubber band + 10% PU<br />A--width 2.5CM，tile size 28-46cm，can be pulled up to 80cm<br />B&C--width 2.5CM，tile size 45-60cm，can be pulled up to 110cm<br />D--width 2.5cm，length 50CM， be pulled up to 70CM<br />E--width 2.5cm，length 50CM，can be pulled up to70CM<br />F--width 2.5cm，length 50CM