We are shanghai bing fan industrial co .ltd based in Shanghai, China. We are member of TradeKey.com since December, 2011. Our business is related to Gifts & Crafts industry and we specifically deal in hot cold pack,ice bag,gel eye mask. Please find our product details below:hot or cold packUsage:Cold compress: put the cold/hot bag into freezer to be refrigerated for half an hour before taking out for use.Hot compress: put the cold/hot bag into microwave oven to be warmed for 100 secThank you for taking time to go through our business profile. If there are any questions, inquiries or comments, please feel free to contact us.