PipSticker Puffies are the PERFECT gift for the sticker collector in your life - even if it's you! Collect and trade with other sticker lovers or use them to decorate your laptop, notebook, planner or gifts! Each puffy sticker measures 4'' x 6'' and is 5mm thick!Includes one Big Puffy Calavera PipSticker.Cultural History of the CalaveraThe calavera (or skull) is a decoration traditionally used during the Mexican celebrations for Dia De Los Muertos (Day of the Dead) and All Souls Day. Calaveras are usually made of sugar or clay and decorate the ofrendas (altars) honoring loved ones who have passed away. Dia De Los Muertos is celebrated on November 1-2.