Check the listing for details. Unger Glass Scraper Blades Carbon 4"/10cm 50/pack (TR100). Width: 4" / 10cm, Condition: New. Listed at 29.99 USD. Enhance the cleanliness of your glass surfaces with Unger Glass Scraper Blades Carbon 4\"/10cm 50/pack (TR100). These blades are ideal for cleaning glass as they are made up of high-quality carbon steel that will last for a long time. The scraper and blades type of device/tool is perfect for removing stubborn dirt and grime from glass surfaces. The Unger Glass Scraper Blades Carbon 4\"/10cm 50/pack (TR100) is specially designed to clean glass surfaces effectively. It is suitable for both personal and professional use, and can be used in homes, offices, and commercial buildings. The width of 4\"/10cm ensures that you can cover a large surface area in a short time frame. The type of cleaner used is glass cleaner, which is perfect for removing dirt and grime from glass surfaces without causing any damage.