If your wee one likes dinosaurs, then this 35 piece tray puzzle is a perfect fit! It's a fun puzzle with lots of dinosaurs to look at; even the clouds look great! A tray puzzle is made up of a board with a recessed center with a raised edge frame, plus removable puzzle pieces. This allows the durable puzzle pieces to fit into the tray creating one flat surface when completed, just like a regular jigsaw puzzle. When the puzzle pieces are removed from the board, you'll find a greyed out image as the background. This greyed out image also has definitive lines to give the puzzler two clues: the shape of the puzzle piece and the image printed on it. Originally, our tray puzzles were intended for young children, but we quickly realized that seniors enjoyed these puzzles as well, particularly those living with dementia.