I wanted to carry everything in one bag, well, that didn't work. But I didn't want a portable ambulance. This nifty little thing takes the place of about a dozen gauze squares, a 5x9 and a roll of Kerlix! I put one of these on the side of a lady's head, she had a temporal artery lac and it definitely saved her life! The kerlix kept slipping off, but not this. Works great with CoFlex tape!