🧠 Unlock Your Brain's Potential with Every Puzzle! Brighten your day with a surprise color selection. Compact A5 size fits perfectly in your bag. Crafted from sturdy cardboard for lasting enjoyment. Challenge yourself with 4 unique Sudoku puzzles! Only 460g for easy portability. A5 Size Set of 4 Puzzle Fun This set of 4 A5-sized Sudoku puzzle books by WF Graham offers a fun and engaging way to challenge your mind while on the go. Each book features a unique design in random colors, making them not only practical but also visually appealing. Weighing just 460g, these lightweight puzzles are perfect for travel, ensuring you can enjoy brain-teasing fun anywhere.