This officially licensed Harry Potter Marauders Map Lanyard Badge Id Holder features a lobster claw clasp with clear Id badge holder, and a rubber Marauders Map charm. This is a one size fits all gift (OSFM) which makes it great when you don't want to have to guess your Harry Potter Fans sizes. This lanyard has images on two sides and doubles as a keychain, it makes an excellent any occasion gift for any Harry Potter Fan