Replacement reeds for our Fragrance Reed Diffusers. Sold in bundles of eight reeds. Our 10" reeds are 3mm thick to provide for maximum flow of fragrance. We suggest reeds be replaced every 6-8 weeks in our French Pearl Reed Diffusers to provide for maximum flow of fragrance. The more reeds that are placed in our fragrance; the more fragrance that is released in the air. In time, the reeds will become clogged and will no longer be able to release any fragrance (although there may be fragrance oil in the bottle). Replacing the reeds will start the process of drawing fragrance up the reeds again. When displaying our Fragrance Diffusers; it is always wise to have on hand additional reeds for sale for your customers (add-on sale!).