Set of 5 replacement mop heads, upgraded version for deep cleaning. Super high density microfiber (fiber density of 1.6 million fibers per square inch) which makes our mop heads can easily remove the stubborn stains and absorb the pet fur, hair, filth, bringing you a tidy environment. Never worrying about the compatibility, our replacement mop heads are in the universal size of 16.5x5.25 inch, which easily attaches to your spray mop head of your Bona spray mop or other system. Product Features: 1. Made of high quality microfiber, high density, durable. 2. Totally reusable, can be reused for many times to save your bills. 3. Easy to care, hand washable and machine washable, easy to clean. Specification: Material: microfiber Color: Blue Size: 16.5x5.25 inch Package Included: 5 x Microfiber Spray Mop Replacement Heads