Perfect Compatibility: The mop head fits the Triangle Spin Mop. This product is a standard size triangular disc. Diameter : 15cm, 115g/piece (up and down 5g error), 80% Polyester + 20% Nylon. Perfect Mop Heads: Made of microfiber, streak-free cleaning , effortlessly removes and absorbs stubborn dirt and grime. The red fibers absorb 20% more particles than conventional microfiber threads Easy to install: just pull the strands of the mop to unclip the head and replace it by pushing it into the red frame until you hear a click Suitable for all floors: Suitable for all types of hard floors, including wood and laminate. High water absorption, strong decontamination, long life, easy to clean Quantity delivered :3 pieces Multi-purpose Most suitable for floors with smooth surfaces, such as wooden floors, ceramic tiles, laminate floors, marble floors and other sealed hard floors .Wet & Dry UseMicrofiber turbo mop heads can be used wet or dry for cleaning. The mop refill is reusable and machine washable. 3 pieces can last almost a year for normal house cleaning.Easy InstallationFirst, put the mop upright, bend the handle away from your foot direction and pull lightly , and your mop head will detach from the handle. Second, put the cap on the mop head. Once the mop refill assembly is positioned, apply light pressure to the cap with your feet to secure it to the mop head.