Albuquerque, USA- December 7, 2011: Lego Duplo Blocks, Figures, Teddy Bear, Balls and Toys. Duplo bricks are twice the length, height and width of traditional Lego bricks (eight times the size in volume), as a result being easier to handle – as well as being far harder to swallow – by younger children. Despite their size, they are still compatible with traditional Lego bricks. Initially launched in 1969, the Duplo range has gone on to include sets with figures, cars, houses and trains. These Duplo elements are from 1988.