50 Pieces 10"/25cm in Length x 3mm Diameter,Designed For Superior Wicking Action.Environmental Material:Polyester-cotton,Saturated Bright Color And No Color Bleeding. Uniform in size and shape, More straight and smooth than the natural rattan reed sticks,Not porous on the ends.so it looks as a home decoration piece.It will make your home more beautiful with the inviting scents and will make it a place that everyone would like to stay It works well with the mostly fragrance oil, A variety of colors and sizes are available, so that they will more integrated into your home Can be safely use, environmentally friendly safe materials. Just flip once a week and change once a month. This kind of stick adsorption volatile natural fresh fragrance. The composition of essential oils (oil-based, water-based or others) and their activity are the most fundamental causes of their diffuse effects. You may need to determine the quantity or material (fiber or natural reed) of the diffuser sticks based on the active properties of the essential oil. The diffuse effect of the fiber is generally better than the natural reeds. If the properties of the essential oil do not match the diffuse sticks, it will lead to diffuse too fast or no diffuse.