safety lancet 1)Double safety to avoid cross-infection 2)CE,ISO13485, ... 23G ,26G,28G 4).OEM. safety lancet is combined with lancet and lancing device .With the needle and the spring ... Step 1: Twist Off protective cap Step 2:Press safety lancet on Choose site to get blood Step 3 ... Type21G23G28G30GSpecification2.2mm 2.2mm1.8mm 1.6mmColor GreenYellowPurpleBlue. safety lancet(CE,ISO13485,CMDCAS,FDA,GMP)