BEST VALUE PACKYou will get 3 mop heads, which will last more than 1 year for normal house cleaning. This is the best value pack.HIGH QUALITY100% Super Absorbent Microfiber Strands, durable and won't scratch the surfaces you're cleaning. Easy to replace, work effectively and ensure safety.MULTIPLE USEBoth for dry and wet use, you can use for cleaning tile floor, wood floor, window, even cars, effortlessly.EASY TO INSTALLFollow the picture instruction to socket it on to your mop, easy to attach and sturdy after install properly. Machine Washable for Easy Reuse.EXACT FITPerfect replacement mop head for triangle Spin Mop system. Our mop heads fits most mop head refills, Inner triangular rim size 3.9'' and the outer triangular rim size 5.7'' in diameter, our special design make the head more stable while you cleaning.