These 12" reeds are made from all-natural Rattan, a high-quality fibrous material perfect for absorbing fragrances. Reed diffusers have proven to be a very effective way to add scents to your living space. Simply pour the desired amount of essential oil into the diffuser bottle, then place the reed sticks into the bottle and the oil will saturate into the reeds. As the oil wicks up the reeds, it will release the aroma into the air. Perfect to use with our decorative glass diffuser bottles.