?You can exercise yourself at any time with this product. <br><br><strong>Fearures:</strong> <br>Develop core abdominal muscles and back strength. <br>The ring's resistance speeds up toning by targeting specific muscles.? <br>Useful in problem areas like the inner and outer thighs£¬ upper arms£¬ the chest and even the pelvic muscles. <br><br><strong>Specifications:</strong> <br>Material: FRP &amp; EVA <br>Color: Blue£¬ Black£¬ Rose(optional) <br>Diameter: 34cm / 13.39in <br>Item Weight: 305g / 10.75oz <br>Package Size: 40 * 38 * 6cm / 15.75 * 14.96 * 2.36in <br>Package Weight: 565g / 1.25lb <br><br><strong>Package List:</strong> <br>1 * Fitness Circle