The mattress is continuously alternately inflated and ventilated through the double pipes, so that the spherical airbags fluctuate stably and alternately, constantly changing the contact point between the human body and the mattress, effectively avoiding continuous pressure on the skin, promoting blood circulation, and preventing the occurrence of bedsores.Features:Mattress head and tail lengthened design, prevents mattress from sliding.Double air nozzle design, seamless and airtight.One-piece massage, 135 spherical airbags are evenly stressed.Made of premium PVC material, skin-friendly and breathable, keep skin dry.Low noise air pump, energy-saving and high-efficient, air pressure adjustment button.The mattress is integrally formed, firm and reliable, with good sealing performance and no air leakage.Specifications:Material: PVC 3PLYPlug Type: 3 types (optional)Thickness: 0.3-0.4mmNumber of Bubbles: 135PcsWork Load: 135KgVoltage: AC220VFrequency: 50HzInput Power: 7WPressure Range: 0-15Kpa (0-115mmhg)Air Pump Inflation Volume: 5L/minExchange Time: 12 10% minutesRelative Humidity: 80%Relative Temperature: 5~40Noise: 50dBMattress Size: 1930 * 880 * 60mm / 75.98 * 34.65 * 2.36inAir Pump Size: 185 * 110 * 85mm / 7.28 * 4.33 * 3.35inPackage Weight: 2900g / 102.29ouncesPackage Size: 280 * 195 * 165mm / 11.02 * 7.68 * 6.5inNote:There are 3 kinds of plug types for your choice, please choose one suitable for your country.Package list:1 * Anti-decubitus Mattress1 * Air Pump1 * Plug Cable Our products are made with the highest quality materials and are designed to provide you with the best possible user experience. We strive to ship out all orders within three days of purchase, and the estimated delivery time is 8-15 days. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it