Perfect compatible with Viled mop head:The mop head fit for Triangle Spin Mop. Has the inner triangular rim size 4'' and the outer triangular rim size 5.7'' in diameter. Perfect Mop HeadsMade of 100% microfiber, streak-free cleaning, removes and absorbs tough dirt and grime easily. Red fibers pick up 20 percent more particles than standard microfiber yarns Easy Installment : simply pull on the mop strands to unclip the head and replace by pressing into the red frame until you hear it click Suitable for all floors: Suitable for all hard floor types, including wood and laminate. Worry-free shopping: At any time, if you are not satisfied with our products, please contact us and we will create an urgent order for you Delivery, Let you have a worry-free after-sales guarantee.