Baltimore Orioles 50th Anniversary 59Fifty New Era Fitted Hat (Glow in the Dark Purple Red Under Brim) Size:7 7/8 White inside lining and 2001

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Baltimore Orioles 50th Anniversary 59Fifty New Era Fitted Hat (Glow in the Dark Purple Red Under Brim) Size:7 7/8 White inside lining and 2001Baltimore Orioles 50th Anniversary 59Fifty New Era Fitted Hat in Purple & Red Under Brim. Logo: Glow in the Dark How to make Patch Glow in the Dark: Simply Expose Logo to Sunlight (or bright light) for at least one full minute to activate the green phosphorescent glow. The longer it is exposed, the longer and brighter the afterglow will be.