Made from fiberglass with PP material outer, the ring featuring elasticity NOT break and STILL maintain its shape after strenuous exercises. A perfect size to be used by arms and legs; does not take up much space and can be easily tucked into a suitcase for workouts on the road as well. Sleeved in soft and cushioned rubber with comfortable padded handles on both outside and inside superior comfort in exercise. not cause unnecessary sports injuries. Perfect for travel, lay flat, dont weight much and take up little space in your luggage. Turn your home or anywhere into a gym at any time. perfect for all types of Pilates exercises, it is commonly used to tone upper arms, inner & outer thighs, abs & pelvic muscles, core and lower body. Colour: Pink Material: PP+glass fiber Package Contents: 2 x Pilates circle Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.