product description 1.The fits the shape of the legs better so it wont falling off when doing exercise. The power of the spring is strengthened, the exercise results will be more significant. 2.This exerciser can strengthen a woman's pelvic muscles, specifically the pelvic floor. The weakening of these muscles can cause pelvic organ prolapse, which can lead to urinary and bowel incontinence. Many factors can weaken your pelvic floor muscles, such as childbirth, age, and even a chronic cough. 3.Applicable People The hip and pelvis trainer is a perfect fitness equipment for women who have just baby, work sedentary people, hip flat, postpartum mothers and all exercisers. This pelvis muscle exerciser can be used to shape hip line effectively, let you have a charming body. Best workout equipment for women to shape back, to thin arm and leg. 4.Versatile, durable and excellent product 5.Suitable for both men and women, perfect and useful gift .