I found these in the summer of 2018 and started using them to display my puzzles at art shows. Customers not only got to see my art better, but loved the idea for home display. For the many that display my puzzles rather than take them apart, these are perfect and affordable. The black cardboard box goes from being a small box to being a 45 degree angle display, a magnetic mechanism holds the display open or closed. This addition is also from the Lighthouse coin display system and interchangeable with my snap lock cases I also sell.