Hypodermic needleGauge: 30G, 29G, 28G, 27G, 26G, 25G, 24G, 23G, 22G, 21G, 20G, 19G, 18G, 17G, 16GRegular Needle Length: 1/2", 5/8", 3/4", 1", 1 1/4", 1 1/2"Sterilized by EO gas, non-toxic, non-pyrogenic, single use onlyQuality standard: ISO13485:2003