HIGH QUALITY: High quality memory steel can ensure the long service life of the products. The exterior is wrapped in PVC bubbler and the interior is designed with adjustable spring gears. .WEIGHT DEVICE - it can effectively train the muscles to support the pelvis and hip muscles, and it is easier to achieve a beautiful buttock effect and maintain a healthy pelvis..POWERFUL FUNCTION - Use this hip trainer to effectively engage your pelvic, inner thigh and hip muscles in the exercise Targeted Pelvic Floor Muscle Strengthening Treats weakened pelvic muscles, relieves incontinence and improves intimacy. OF SERVICE - 1 minute a day beautiful buttocks, 7 days to tighten pelvic floor muscles, 4 weeks to change sedentary posture..APPLICABLE PEOPLE - The pelvic muscle trainer is suitable for sedentary or post-p artum or who are concerned about the flatness of the buttocks. Thus improving the couples life, physical anti-aging, gynecological diseases and gender harmony.V.