For disposable of waste and hazardous materialThe durable bag is made of a special type of polypropylene and can be autoclaved at 132℃. The lid of the rack can be opened by pressing the pedal. The rack is designed for the L-size bags but can also be adjusted for the S and M-size bags. An autoclave indicator tape is included with the bags to confirm that the autoclave has been completed properly. Autoclave within 15 minutes and do not fasten too tight with a clasp or use the heat seal.