Here's an easy, non-toxic way to keep away mosquitos and other flying pests, for your next long weekend at the lake. The Pic Citronella Wristband provides up to 72 hours of waterproof, DEET-free insect protection. Easy to use - just slip it on! Buy 'em by the dozen.Keeps bugs away for up to 72 hours. Waterproof Non-toxic, DEET free. Resealable. One size fits all. Contains 1 Band.