Blue-tinted transparent cover, Internal & external color-changing indicators assure proper processing in chemical vapor, steam, or ethylene oxide (EO) gas sterilization. Sizes=outer dimensions. #4460-2.25x2.75 25/200/Cs #4461-3.5x5.25 30/200/Cs #4462-3.5x9 20/200/Cs #4463-5.25x7.5 12/200/Cs #4464-5.25x10 15/200/Cs #4465-7.5x13 5/200/Cs #4466-12x16 5/200/Cs UNSPSC#42281900