Unopened and unused. However, I put the ice packs in the freezer, intending to use them. Cooling ice sheet for backpacks and school bags / Contact cooling specification Length: 23 cm Width: 20.5 cm Includes 2 non-hardening ice packs Color: Gray Manufacturer: Kerata I thought it wouldn't fit in a large backpack. Please check the size on the manufacturer's website. Thank you for your understanding regarding used items. Thank you for viewing. Please consider it.