This pin is part of a Mystery set of pins that are being sold in silver packs, 2 pins per pack. This mask is Hook from Peter Pan. The mask is red with black and yellow accents and a hook over the left eye, and gray feathers on the top. The HM is in the light gray feather. The back of the pin has the waffle Mickey design, lower left box is the pin trading logo, top right box says "Hidden Disney Pin / 5 of 5. The top left box is the Disney trademark and Made in China. There is one nub, to the left of the pin post. The pins in this set are Maleficent, Evil Queen, Hook, Hades, Dr. Facilier, Frollo - chaser(completer) and Super Completer Mickey. The Mystery sets in this series are Lion King, Castle Fill, Pixar - A Bugs Life, Star Wars Droids, Marvel Icons and Carnevale Masks.