Many repellents are easily diluted or rinsed off with swimming or perspiration, but not this wristband it just keeps working. The vapors from the wristband form a protective shield around the immediate area, keeping blood sucking insects a safe distance from the person wearing this convenient plastic band. The band is designed with a patented "break-away" strap that snaps if the band is entangled and pulls on the person's arm. The wristband has a "active life" of up to 120 hours. This life can be preserved if the band is sealed between use. The band can also be worn on belt loops, hatbands, fastened in tents, attached to baby carriages or applied to other areas where insects could be a problem. The band is "recyclable".