As an industrial and scientific professional I stumbled upon this fiberglass replacement brush and found it to be a total game-changer in the world of electronic cleaning .As a result of using this product, I found that it was extremely effective in removing dirt and debris without causing any damage to the delicate electronic components. The long-lasting durability of the brush made it perfect for frequent use. The only con was that it required proper handling due to its abrasive nature. Overall, this is an outstanding find in abrasive brushes..