Abstract: A self-wringing mop includes a handle having at one end thereof a housing in the configuration of an open bottom clevis. A pair of roller sets are journalled adjacent the bottom of the clevis with the clevis end walls providing a pair of opposed inverted U-shaped guides. A replaceble mop head includes a sponge and an elongate spine having opposed concave side panels. The spine is engaged by a bail formed at the end of a rod which extends through the handle into the housing. Normally, the rollers are urged against the concave side panels of the spine and the sponge projects beneath the housing. To wring the mop, the rod is drawn upwardly pulling the mop head into the clevis and compressing the sponge between the rollers. Axial head movement is guided, and lateral movement is prevented by keyways formed in the spine and engaged by opposed edges of the housing end wall guides. The mop head is ejected from its normal position by forcing the rod downward which disengages the keyways from the guide.