elastic closure Hand Wash Only Intelligent EMS Stimulator: This Yoga Pants with ultimate EMS Stimulator can help you strengthen your buttock muscles when you are busy or when you don"t have time to exercise in the gym. Powerful & Flexible: Our Hips Trainer Shorts provides 8 exercise modes to choose, adopts 19 intensity levels from warm-up to high-intensity exercise and finally to relaxation. 15 minutes per time. Then you can gain a better figure after continues use of product for about 2 Months. Fix the Buttocks: This device has shown positive results to improve and sculpt not only your butt, but also your thighs. Works to relieve muscle pain, just like an electric massage causing muscles to rhythmically contract and relax. Easy to Use: The device will directly send a signal to muscles and promote muscle movement. All you have to do is to adjust the mode and massage intensity by the host. It"s designed with power self-check function. Only when you stick the gel pads to your body, can the controller start working. Perfect Gift: This Muscle Training Workout Yoga Pant is perfect for yoga, exercise, fitness, any type of workout or everyday use. It aslo a good gift for somebody who want training or somebody you loved.