The present invention relates to a cleaning composition comprising an emulsion comprising a polar co-solvent, a non-polar co-solvent, and an alkylamine dispersed throughout the emulsion. The writing medium is exposed through a rotating motion, while at the same time also exposing an auxiliary tool, such as a silicon gum eraser, at the opposite end. The slots opening has a width dimension in the range of about 0. When no longer needed, the inflatable, therapeutic air mattress can be easily deflated, rolled up and placed in the permanently attached shipping container and shipped back to the provider by any means of commercial air or ground shipment. The process provides for a significant number of profiled bars or decorated steel sheets to be produced per unit of time. :1 or which is homologous to or hybridizes to a fragment of DNA having the nucleic acid sequence SEQ ID NO.