For gentle BODY exfoliation: Sea Wool Sponges, from the coast of the Bahamas. Use the wet sponge on soapy skin to gently buff away dead skin cells and dirt. The minerals contained in sea sponges nourish and benefit the skin. These include, but are not limited to: calcium, magnesium, sodium, iron, zinc, and potassium. Simply rinse and hydrate. All Natural Sea Sponges are a renewable resource.