Cool Cassette Instrument Trays make your instrument-handling procedures easier and safer than ever. Solid silicone trays dissipate heat faster than steel for quick removal from the autoclave, with no sharp edges to tear gloves or injure hands and no metal to create noise, dull instruments, or scratch mirrors. The snap on lid "peels off" easily yet holds securely, and nests underneath the cassette to save space when open. And Cool Cassette 2 has no hinges, locks, or moving parts to break. Fully sterilizable to 375°F. Available in five popular sizes and five colors.