Microfiber wave sponge lifts and traps dirt. Makes life easier! Fits O-Cedar Power Scrubs roller mop. Satisfaction guaranteed - Since 1906. People have trusted O-Cedar brand products for over 100 years to make their lives easier with dependable products that help get their cleaning jobs done right. If you are not completely satisfied please return product to us with your sales receipt for a replacement or refund. www.ocedar.com. Attn: Consumer Affairs 2188 Diehl Road, Aurora, IL 60502. Proudly made in USA.