Each side of the beautifully photographed solid wood cube puzzle is part of a different protein picture… so this is like getting 6 different puzzles for the price of one! The Real Life Learning Protein Cube Puzzle includes 6 full-color fun facts cards. One side of each card provides a solution guide for the completed puzzle, and the other side lists fun and educational facts related to the picture. Taken alone, or along with the other food group puzzles in the Cube Puzzle series, this is a great way to reinforce healthy eating habits in a fun and engaging way! The Protein Cube Puzzle is made from solid wood. Safety tested, lead-free paint (rather than stickers) is used to apply the pictures directly onto the cube… which means no peeling, and helps ensure durability for years of fun. Each side of the puzzle features a slightly different pattern on the border, helping kids get the cubes all onto the correct side. And, every one of our cube puzzles within a category has a different colored border to make sure the cubes don’t get mixed up! For example, in the foods category the fruit puzzle border is orange, the vegetable puzzle border is green, the protein puzzle border is red, the grains puzzle border is yellow, the dairy puzzle border is blue, and the snacks puzzle border is purple. Putting together puzzles helps to develop the ability to reason, deduce, analyze, and sequence, and directly effects logical thinking and problem solving skills. Physically, puzzles provide practice for hand-eye coordination and spatial awareness. In addition, the twelve 1 ½ inch wooden cubes in the puzzle are great for stacking, building and counting!