This Norton 43112 Abrasive Disc Sanding Back-Up Pad is a must-have for anyone in the automotive industry. It's brand new in the box and ready to use with your 8-inch sanding discs. The 5/8 arbor makes it easy to attach to your sander, and the durable construction ensures it will last for many projects to come. Whether you're a professional mechanic or a DIY enthusiast, this backing pad is an essential tool for achieving a flawless finish on your sanding projects.