3.5" with their 1990 copyright on the curl. Design comes from the Disney produced movie of that year. Button also reads "Play McDonald's $40 Million." The white background has quite a few but exceedingly small and faint marks just a hair darker than the surrounding white areas. The marks don't seem to be actual moisture stain marks but rather small marks caused by trapped air under the plastic covering. In any case they show very little. The piece is bright clean and glossy and one we've not seen before.