Our hand poured reed diffusers are a low maintenance and a flame free way to give your home a warm and inviting aroma and they last approx. 3+ months. They are hand poured in small batches and contain 5.8 fl oz of premium fragrance oil that is non-toxic, phthalate free and infused with essential oils (see descriptions for ones that have EO). They come in a classic round frosted glass bottle with scent throw, all day long. Just set it up and forget it. You can also flip the reeds every so often to refresh.