Sponge Set contains one small 4”x6” and one large 5”x7” sponge made of 100% undyed, felted wool. Wool is naturally anti-microbial, anti-fungal and fully compostable. It is a truly sustainable resource, especially coming from an animal and land-focused farming operation, such as Meadowfed Lamb's silvopasture system. These sponges are gentle enough to use on your face or wash your veggies, and sturdy enough to scrub your soup pots and cast iron pans. They can last a very long time, but it’s recommended to cycle them every 3-6 months. Care: rinse with warm water, squeeze out & let dry. They’re felted & will naturally reduce in size with use. Made in Massachusetts.