ener. * Guaranteed for 300 washes without losing performance. * e-cloth fiber side: 80% polyester / 20% Polyamide * Made in KoreaWhere to Use:Kitchen Cleaning, Bathroom Cleaning, Pots and Pans, baking dishes, plates, cutlery, showers, sinks, tubs, barbeque grills, etc.Kitchen Cleaning is more effective due to the strong scubbing power of the grey side and the grease gathering of the yellow microfiber side.Bathroom Cleaning beneifts most from the scrubbing power of the grey side adding extra power to tough bathroom dirt and mildew.Scrubbing side made from polyester threads surrounded in tough non-scratching nylon and then made into e-cloths scrubbing fabric.Can be used on non-stick surfaces without scratching or damaging the surfaces.e-cloth fiber side is made from the highest quality cleaning microfiber fabric available in the world.Sponge material between fabrics. • Yeast Free • Wheat Free