Efficient cleaning is easy with this long-loop mop head High-grade, cotton blend, looped-end yarn won't fray or unravel. Remains intact even with intensive laundering which ensures longer life than conventional cut-end yarn. Long loops facilitate maximum dust collection. Mop head is approximately 24in. x 5in... Wilen PermaLoop Dust Mop Pad Long Natural Refill is one of many Mops & Refills available through Office Depot. Made by Wilen.