The Clarity Lucidite Reed Diffuser 4 Pack is a set of four clear glass diffusers that each hold 1.01 fl oz (30 mL) of oil. The diffusers are designed for use with reeds to create a fragrant ambiance in any room. The Clarity brand is known for its quality home fragrance products, and the Lucidite scent is perfect for aromatherapy. Each diffuser is a stylish and effective way to enjoy your favorite essential oils in the comfort of your home.