Made of pure Citronella Lemongrass Geraniol natural essential oil. Measures 9 inches in length with an adjustable strap that lets you get the perfect fit. You are assured that they free from deet and you get completely safe pest control for your family. We used the best quality silicone material to make our bracelets. You can wear them in the rain or in the pool without worrying about spoiling them. They therefore cause no discomfort, are unisex, and perfectly suited for babies, kids, adults, and pets alike. It remains effective for two-three months and if kept in a zipper bag while not in use, it can be used for more than a year.