Autoclavable bags by Heathrow Scientific are clear bags imprinted with blue biohazard labeling designed for safe disposal. Constructed of 2.0 mm thick polypropylene, allowing for repeated autoclaving. Strong side seams for securely holding items. Front write-on panel. Autoclavable at 250 degree F. The bags come in 4 inner packs of 50 bags. Dimensions are 12.20" x 25.98" in (31.0 x 66.0 cm).