Product Description Useful for maintaining proper instrument order in cassettes and identifying instruments by procedure. Will withstand all heat sterilization methods. Manufacturer Contact Information 1-800-483-7433 Useful for maintaining proper instrument order in cassettes and identifying instruments by procedure Will withstand all heat sterilization methods Silicone rubber rings for identifying and organizing instruments. Use on #2 and #4 handles Country of origin: United States Item Weight 0.01 ounces Manufacturer Hu-Friedy Item model number IMS-1285 Package Dimensions 10 x 10 x 10 inches