This is a Kenko ZXII PROTECTOR 49mm filter. I purchased it new about six months ago when I bought a lens, and I've kept it attached ever since. I'm selling the filter because I'm selling the lens. It was stored in a dehumidified storage box along with the lens. I only used it for snapshots in the city and indoor photography, and never in an outdoor environment. There may be some fibers attached from when I removed it, but I don't see any scratches. I think it can be used without any problems if you lightly wipe it before use.