Lasts up to three times longer than standard coated hand sanding sheets. High-quality metalwork requires a quality finish, and for that, you need a good, even abrasive. The Expert N880 not only performs well right out of the package but also maintains its quality over a long lifespan, providing a consistent finish. The Expert N880 non-woven disc is an example of Bosch's Surface Structure: it combines the latest sanding technology and manufacturing expertise in a single, exceptionally durable non-woven material. With its three-dimensional product featuring Cross-Laying technology, professionals save money thanks to its long-lasting performance. Additionally, they no longer have to deal with hand sanding sheets that lose grit. Whether you're finishing a metal component with precision, cleaning a workpiece, or sanding a hard-to-reach surface, the Expert N880 is the best choice for the long term. Easy attachment with Velcro. Grit: 320, hardness grade: very fine A, diameter: 125 mm.