The RS PRO red microfibre cloths have a size of 400 mm x 400 mm. The microfibre materials avoid the scratching of windows or delicate surfaces. These cleaning cloths can be used either dry or damp for various cleaning tasks, like dusting surfaces, cleaning windows and mirrors, and shining stainless steel. RS PRO have a great range of multi purpose wipes at low prices suitable for various applications to meet all your cleaning requirements.