16 x 16 inches. Use these assorted microfiber cloths to clean anything. Road grime, tar, bugs. Use one wet followed by one dry for a clear film free windshield. Use on all windows and mirrors with just water. Let them do their magic. Use in any combination. You will see a difference between these cloths and the disposable ones you buy uptown that are made in China, or we will refund your money. Quality fine microfiber is made in Korea.