Skin detergent hitherto available comprises a mixture of cream and powder, and coagulates and sets due to evaporation of water content to become an eraser’s waste-like object, so that the eraser’s waste-like object embraces the dirt and sets, thereby showing an effect of cleaning. Sub-corrugations run along part or all of the arch-curve lengths of either crest corrugations or valley corrugations, or along both of them. The flexible support defines a plurality of hinge points configured to facilitate movement of the article. A control interface is outside the virtual servers and can be used for control of the virtual servers in response to control commands. The electronic article surveillance tag may be used with either a smoothed or grooved tack shaft and may be operated by either mechanical probe actuation or by the use of a magnetic detachment means applied to the spindle. In the void 9, a water repellent film 10 is formed.