Descriptions Under the action of saturated steam at a certain temperature and pressure, after a sterilization cycle, the indicator turns to greyish black or black. The color does not fade easily after sterilization. Features - Color: Yellow.- Material: Rubber.- Size: About 5000X1.9X0.01cm.- This tape is for use in autoclave, dry heat or chemical sterilizers and will seal autoclave bags, tubing, pouches and CSR wraps.- Color changing indicators visible before and after sterilization.- Can be used for various types of pressure steam sterilizer.- Don't put tape form condensate of metal, glass and other hard surface in direct contact, otherwise the tape may will lose accuracy.- Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!Packing list: 1 Roll x Tape