Invader Wet Mop Handle makes removing and replacing mopheads easy and efficient. Yellow plastic side gate allows mophead to easily slide on and off handle. Thumb wheel clamps the mop firmly in place. It should be used with 1" (2.5 cm) headband mopheads and universal headband mopheads (sold separately). Large head of the frame is made of sturdy plastic. Fiberglass handle offers corrosion-resistance and good strength-to-weight ratio. Mop handle is suitable for commercial and industrial applications.