I bought this for my child's fever, but they wouldn't wear it, so I haven't used it much. There are only three ice packs. Would anyone like to try it out? [Product Description] The length is adjustable, so it can be used as your baby grows. It's a gel type that doesn't harden even when frozen, so it's not bumpy. It has removable buttons, so you can use it on just one side. ● Cooling for about 3 hours, with a cooling duration of about 1 hour (cooling time varies depending on the outside temperature and body temperature). There are no major scratches, but please understand that this is a used item before considering purchasing.