Ultra-High Compatibility Mop Head: A swivel mop head replacement with a 12.6-inch diameter. The triangular rotating mop heads have a 5.7-inch outer width and a 4-inch inner width. It's a microfiber mop head refill for 360-degree turbo mops. Please check your mop head size before purchasing to ensure compatibility. High-Quality Material for Rotating Mop Heads: The replacement mop head is made of 100% microfiber for streak-free cleaning. The rotating mop refill features soft, absorbent threads, and our replacement mop head won't scratch floor surfaces. Wet and Dry Mop Head: The microfiber turbo mop head can be used wet or dry for cleaning. The mop head is tested to be reusable and machine washable. Dry use quickly sweeps away dust and debris; wet use mops up spills and cleans with added cleaning solution for a cleaner finish. 3 mop heads can last for almost a year of normal household cleaning. Easy to Install: First, stand the rotating mop upright, bend the handle in the opposite direction of your foot, and gently pull; the mop head will detach from the handle. Second, place the mop head cover on. Once the mop refill is in place, gently press the cover with your foot to secure it to the mop head.