The Educa 20-40-60-80 Piece Progressive Puzzle featuring friendly dinosaurs brings together four puzzles with an increasing number of pieces, from 20 to 80, allowing children to progress in difficulty as they gain skill in assembling them, a step above the 12-16-20-25 piece format from the same brand. Each puzzle, with illustrations of friendly-looking dinosaurs, has quality cardboard pieces of a size suitable for children who already have some experience assembling puzzles. The progressive format is suitable for children from 4-5 years old, accompanying the evolution of their motor skills and concentration from puzzle to puzzle within the same set. It is a popular option among dinosaur fans who no longer feel challenged by the simpler progressive puzzles in the range, serving as a natural bridge to single-piece puzzles later on.