Farm is a subtheme of Duplo that consists of 11 sets that as of now ran from 1989 to 2014.
The LEGO DUPLO theme was introduced as far back as 1969 and is designed for children ages 1 to 5. It features DUPLO figures which are much larger than minifigures and DUPLO blocks which are about twice the length, width, and height of a standard System brick. Like LEGO System, DUPLO also has subthemes that are often junior versions of System themes, like Pirates and Castle and licensed themes like Disney and Super Heros.
Summary
Duplo Farm Farm Bike set 5645 was released on December 30, 2009, retailing for $10, it has since been retired. New, unopened sets are valued at $17, while used sets sell around $7.
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