A Core deposit is a form of deposit you pay until returning your old part. If you don't have the core at the time of purchase, you must pay the core charge. That charge is refunded to you when you return the core.
3M 9"' x 11"Imperial(TM) Wetordry(TM) Sanding Sheet
9"' x 11" Sandpaper
Used in wet sanding, fine featheredging or last final sanding step before priming. Most flexible backing with more consistant scratch pattern make this 3M's best wet sanding product. 50 sheets per sleeve.