Schylling 15 Puzzle a classic and engaging challenge that has entertained puzzle enthusiasts for generations. This timeless sliding puzzle features numbered tiles that must be arranged in numerical order by skillfully sliding them into the empty space. It is for developing problem-solving skills and patience while providing hours of fun for all ages. The Schylling 15 Puzzle is a great addition to any game collection and makes for an excellent gift for puzzle lovers. Model Number: