Features： 1、After the pressure steam cleaning treatment, the indicator marks change from blue to brown; after the ethylene oxide cleaning treatment, the indicator marks change from pink to blue. 2、Widely used in oral cavity, beauty, laboratory and other tools. Self sealing design, tightly sealed. 3、No need for sealing machine, just tear off the sticker to paste, convenient and fast. 4、It is carefully designed with transparent film. After the product is put in the bag, it is clear at a glance, more user?friendly. 5、Disposable and hygienic, suitable for dental tools. Safe sealing, better protect tools in it. Specification： Item Type: Self Sealing Cleaning Pouch Quantity: 200pcs/box Features: After the pressure steam cleaning treatment, the indicator marks change from blue to brown; after the ethylene oxide cleaning treatment, the indicator marks change from pink to blue. Product Features: No need for a sealing machine, just tear off the sticker to paste, convenient and fast Size: Approx. 70 x 260mm / 2.8 x 10.2in Package List： 200 x Self Sealing Pouch