Best Value SetYou will get 6 pack round spin mop replacement head. The round mop replacement are machine washable, easy to reuse, will last over 1.5 years in normal house cleaning, economical and environmentally friendly! Universal Size Spin Mop HeadPerfect replacement mop heads for Hurrica, Mopnad, Cassabel and most standard diameter 6.1'' to 6.3'' 360° spin mop system with Round Shape. (Please make a measurement of your existing mop head before you place you order just in case it's not a perfect fit).