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.
Use for scuffing the blend area prior to painting. Remove runs, dust nibs and excess orange peel from paint and gelcoat prior to compounding. Suggested backup pad (part number 05778) and interface pad (part number 05777).