Self-sticking disintegrating block for toilet or urinal

A self-sticking cleaning article comprising:

• a cleansing block including 25%-99% of a solid anionic surfactant for providing adherence to a surface and 1% to 25% of a liquid component, wherein the cleansing block is sticky, wherein the cleansing block includes a non-ionic surfactant for increasing solubility of the block, wherein the block is not a gel, and wherein all percentages are percent by weight of the total composition of the cleansing block;
• a first film substrate removably attached to a first surface of the cleansing block;
• and
• a second film substrate removably attached to a second surface of the cleansing block;
• wherein less force is required to separate the first substrate from the cleansing block than is required to separate the second substrate from the cleansing block due at least in part to either:
• (a) a release layer present between the first film substrate and the first surface of the cleansing block, and there being no release layer between the second film substrate and the second surface of the cleansing block;
• or
• (b) a first release layer present between the first film substrate and the first surface of the cleansing block and a second release layer present between the second film substrate and the second surface of the cleansing block, where the second release layer is made of a different release material than the first release layer;
• wherein the cleansing block has a hardness as measured in a “Hardness Test” of greater than 50 tenths of a millimeter of penetration.