Wool Mophead PY12 Metal Socket A PY12 Wool Mop Head with Metal Socket is a traditional, heavy‑absorbency replacement mop head ideal for daily floor cleaning and wet mopping in commercial, industrial, and residential settings. Constructed with thick PY (polyester/cotton) or wool blend yarns, it offers excellent absorbency and soil pickup on sealed floors such as vinyl, lino, laminate, and tile — while the metal socket provides strength and durability compared with plastic alternatives.