AIM™ professional family of microfiber cloths. Best cleaning performance on glass, metal, synthetic and other smooth, sealed or structured surfaces. Easy gliding, excellent dirt absorption, and the superior cleaning properties of the microfiber cloths make for faster and more efficient cleaning. Microfiber cloths remove stubborn water soluble dirt and grease even without chemical cleaning agents. Yellow............General purpose, all surfaces. Blue................Glass & Polishing cloth, Suede. Green..............Dusting & delicate cleaning. Red.................Restroom cloth. Use dry, the static electricity will attract the dirt. Use moist for effective capillary attraction. One size fits all. General purpose, all surfaces, dust & delicate cleaning Color: Yellow 12 and case