Maxpro brand Strawberry, Banana or Blueberry flavored latex dental dams. MaxPro Dams are specially designed as a berrier for use while performing cunnilingus (oral/viginal sex) ONLY, and are not intended for use during anal sex. MaxPro dams are a thin 10' x 6" rubber latex sheet. When used properly, may help to reduce the risk of contracting or spreding many sexually transmitted disseases (STD's) such as syphilis, gonorrhea, chlamydia infections, genital herpes and AIDS. However they cannot elimitate the risk. Use MaxPro Dams each and every time.