The WINYI Heidi is a versatile three-piece Kegel ball set designed to help you strengthen your pelvic floor muscles. Crafted from soft, lilac-colored silicone, the kit includes three balls of varying sizes to allow for a gradual progression in your routine. The largest ball measures 169 mm in length with a 37 mm maximum diameter, while the smallest is 143 mm long, ensuring you can find the right fit for your current comfort level. To add a layer of stimulation to your exercises, the set features a remote control that lets you toggle between 10 different vibration modes. This system is USB rechargeable, requiring 2 hours for a full charge to provide 1.5 hours of continuous use. With an IPX6 water-resistance rating, the devices are easy to clean, though they should not be fully submerged in water. Weighing only 95 g, this lightweight set is a discreet and practical choice for those looking to integrate pelvic health into their daily wellness habits.