The Libman Tornado Spin Mop Head System Refill is a deep cleaning microfiber mop head designed for efficient and effective cleaning. Made with non-toxic microfiber material, this box of 4 replacement mop heads is suitable for spin mops and comes in a multicolor design. The box of 4 replacement mop heads ensures the product is ready to use, making it a convenient and reliable choice for keeping your home clean and tidy. Ideal for household use, this Libman mop head is a practical and essential cleaning tool for any home.