This professional quality Magic Circle can be used alone as demonstrated in the accompanying video or added to your AeroPilates reformer workout. This Magic Circle features form molded grips to fit comfortably against your body with a nonporous, molded padding that resists moisture. The Magic Circle was created by Joseph Pilates to be a versatile exercise aid you can use anywhere. The soft rubber-covered resistance ring provides faster, more targeted toning, improving muscle strength throughout the body especially in problem areas like the inner and outer thighs, upper arms, and chest. The comprehensive, easy-to-follow instructional DVD demonstrates how the AeroPilates progressive fitness system, can help you sculpt and reshape your body the AeroPilates way! AeroPilates Magic Circle included 14.75 diameter Professional grade, nonporous, molded padding Instructional DVD included workout time approximately 23 minutes Recommended Use Use to improve muscle tone especially inner and outer thighs, arms and chest Construction Steel core ring with soft rubber cover and foam molded padded grips Color Black Resistance Heavy Comfort Elements Padded, molded, non-porous grips Target Training Inner and outer thighs, arms, chest Includes AeroPilates Magic Circle, workout DVD Assembly No assembly required Warranty 90 days