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100% brand new and high quality. Material:600D oxford,0.315 inches pe foam,aluminium film SIZE:9.8"x6.3''x9.1'' Color:BLACK After test: 1 cup of 100 degrees Celsius water put in 0.315 inches pearl cotton bags after 12 hours turn into 37 degrees Celsius, 1 cup of 100 degrees Celsius water put in 1.6 pearl cotton bags after eight hours turn into 37 degrees Celsius. Note1: 1. There may be an error of 1 to 3 cm due to the different measurement methods and the random sample size. 2. Due to different computer display colors, the actual project color can be slightly different from the above image. NOTE2: Because of the effect of location factors such as environment, test results are for reference only