Features: 1. Multi-functional trainers: the pelvic floor muscle exerciser is helpful for tightening the thighs, buttocks, and lower abdominal muscles. It can correct buttocks and help women's postpartum recovery.2. Improve Body Shape: the pelvic floor muscle inner exerciser can activate the hip muscles in a short time and create a charming curve.3. Pelvic reduction: our exercises are able to promote pelvic reduction and strengthen pelvic floor muscles.4. Applicable people: suitable for women with flat buttocks / postpartum mothers / sedentary work / obese thighs / sedentary women who are worried about flat buttocks.