【Material】Made of durable fiberglass with PP/NBR material on the outside, the ring with elasticity will NOT break and KEEP its shape even after strenuous exercises. 【Size】38*3.5cm/14.96*1.37inch. A perfect size to be used by arms and legs; does not take up much space and can be easily put into a suitcase for training on the go. 【Superior Comfort】Sleeved in soft and cushioned rubber with comfortable padded handles on both the outside and inside ensures superior comfort during training. Will not cause unnecessary sports injuries. 【Application】Perfect for travel, lies flat, does not weigh much and takes up little space in your luggage. Turn your home or anywhere into a gym anytime. 【For full body training】Ideal for all types of Pilates exercises, it is commonly used to tone upper arms, inner and outer thighs, abdominal and pelvic muscles, core and lower body.