Napkin Holders - Yellow Silicon Tubes with Metal Clips, 17.5 inch, Single Bib Holder. Cold Sterilization only. Secures paper napkins in place during dental procedures. Silicone cord design for added patient comfort. Choose from various colors. Cold-sterilize only. Spectrum Bib Clips help keep napkins in place. The clips are attached to a 14-inch silicon tube that feels comfortable on a patient's neck.They have durable springs for added reliability and security. Available in different colors.May only be cold-sterilized.