HALYARD* Tray Liners are designed to be used both inside trays next to delicate instruments as well as underneath trays to absorb condensation and help provide protection to sterilization wrap from sharp tray corners and edges. Features: Absorbent 20 in. x 25 in. 5x less linting that previous product Single-use Not manufactured with natural rubber latex Validated for use in Pre-Vacuum Steam Sterilization Systems at 270*F/132*C for 4 minutes. 50/box, 8boxes/case = total of 400