These tray labels facilitate specific markings and remarks for sterile or contaminated instrument trays. They are designed to minimize misunderstandings about the contents of instrument trays and to notify about maintenance needs of an instrument. The PP-based label is suitable for sterilization by steam, EtO and gas-plasma. It is resistant to washing and disinfection and thus can stay with a tray of instruments all the way through the decontamination process. They are available as blank white, preprinted with information boxes, or can be custom imprinted to meet unique needs.