Most of us suffer from backache, tailbone pain, Sciatica pain or Hemorrhoid pain from sitting for long hours in the office, car, truck, wheelchair or at home? A proper seat cushion can make a world of difference. Multifunctional Donut Seat Cushion is the most innovative multifunctional ring seat cushion using 3 High Frequency Vibration massage and Carbon Fiber Heating technology combined with 5 Ergonomic Pressure Suction Points to relieve your discomfort quickly and more effectively. DESIGNED FOR OUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.