Durability: air filling 0.05mpa, increasing pressure 0.5kg, less than 12% of air leaking Humidity Resistance: plastic material, humidity resistance, water proof Providing diversified materials and samples by customers demand. Processing various vibrations, hitting, package dropping tests in accordance with customers. Our products has wide application in microelectronics, precision instrument, medical, consumer appliance, digital product and other industries where products shipment damage prevention is a key concern.