Shoo! Tag 00-216 Tick Barrier Insect Repellant Family Pack, 4-Tags Ultimate mosquito barrier solution for people Non toxic, no poisons or chemicals Lasts up to four months Effective, last up to 4 months Odor and scent free Ultimate tick barrier for people Non toxic, no poisons or chemicals Lasts up to four months Effective and lasts up to 4-month Odor and scent free