Exact fit for spin mop _ Not only the triangle base but also the bucket. Installation as easy as original which is easily detach and snap on perfectly.Inner diameter: 10CM Outer diameter: 14.5CM Making mop much easier _ Mopping the floor is not really easy, but these mop heads can make cleaning floors a breeze Just cleans by doing two passes: one to wet the floor and loosen grime, and the other to dry, no streaking or water spots. Also it's light weight and wields effortlessly. Great for quick mop ups For hard floor surfaces clean _ Its a good cleaner for mopping up mud and dog prints. You can use them on hardwood, vinyl and ceramic/ tile floors, etc. Rooms like kitchen, hall, dining room and bathrooms. Machine-washable and reusable _ These microfiber mop replace heads are machine-washable and easy cleaning which will release your hands after a laborious housework. Just pot it into wash machine and air dry it, then you can refresh and reuse for a cleaner clean. Economical and environmentally Material _ 100% Microfiber, Polyester | Package Quantity: 3 Pcs