HIGH QUALITY: Made by anti-abrasive microfibers, durable and this turbo mop head replacement will not scratch the surfaces you clean. In addition, the microfiber mop head removes and absorbs hard dirt and scowls effortlessly. Specification: Turbo mop head has the size of the inner triangular rim 3.9 and the size of the outer triangular rim 5.7 in diameter. The mop head replacement will fit most of the standard EasyWring clean turbo mop refiler which has a tri-angled shape. Universal: For both wet and dry use, the classic microfiber mop head replacement is multi-purpose so you can use it on tile and wood floors as well as windows and cars. Easy Installation: Follow the instructions to quickly and easily replace your mop head. It is very robust after installation. Product Size: 4PCS Material fiber, 80% polyester + 20% nylon The super fiber material used has good water absorption, easy to dry spin, and quick rebound. This product has the characteristics of: high water absorption, strong decontamination, long service life, easy cleaning, etc. This product is a regular sized triangle disc. Outer diameter diameter: 14.5cm, inner diameter 10CM, total diameter 38CM