These are a great alternative to cleaning with chemicals. Two cloths are available for dust and glass and/or polishing. Millions of microscopic loops catch the dust as you wipe it across a surface. The cloth generates a mild, opposite static charge to that of the dust causing the dust to cling to the cloth. The glass cloth works great on glass tabletops, glass doors, windows, eyeglasses, drinking glasses, mirrors, TV and computer screens, vases, and other shiny surfaces. It's great for bathroom areas. Wash the cloths over and over. Both cloths are environmentally friendly!