【Material】The mop head is made of 100% ultra-fine fiber, high softness and super absorbent that will not scratch the surfaces you're cleaning. 【DEEP CLEANING】 our microfiber mops provide deep-cleaning solution for all your home and floor cleaning needs by effectively removing dirt, grime with just water 【SUITABLE FOR WASHING MACHINE】: Spin mop head refill are washer and dryer-friendly, free your hands after heavy housework 【save time 】Saving time and labor to clean the floor and mop head, leave your home sparkling; Also reusable and more money-saving than traditional mops. 【Perfect replacement】 Easy Cleaning Mop Head Replacement, for your EasyWring RinseClean Spin Mop. The mop head size: Outer diameter-4.3”, Inner diameter-2.95”.