Removes grease & grime and 'spot cleans' glass and mirrors, leaving them streak-free and lint-free, using just water. Excellent on: Glass and mirrors - Perfect for 'spot cleaning'. Dual-sided, one side for cleaning and one side to polish. What makes E-Cloth different from other cloths? Premium microfibres This cloth has 480,000 of them per square cm, split on a microscopic level, they break up and grab grease, dirt and bacteria, removing it from surfaces. 3 Year Promise: You can wash this cloth 300 times at up to 90°C (hot). With regular washing, it will last you 3 years. That's a promise.