I wear one of these on my ankle and another on my wrist to do the lawn mowing. I always get mosquito bites when I mow and I hate it, so I thought I would try these. They really do work. Last time I mowed I got no bites at all, and this time when I mowed the lawn I got one bite because I forgot to put them on and had to get off the mower and come in the house to get them so I could finish mowing.