Replaceable Scrubbing Pad Removes Caked-On Dirt And Scuff Marks. Soft, Durable, 9" Cellulene Poly Sponge, Very Easy To Rinse Clean. 48"L Steel Handle With Swivel Hang-Up For Easy Storage. Handle Screws On Refill, Uses Type R No.0572 (SKU 529.5886) Refill. Fully Threaded Posts Ensure Maximum Security Of Mop Refills To Mop Head Assembly. No Loosening Of Thumb Screws – Prevents Sponge Refills From Falling Off.