Thanks all. It is just one topper front and back. Just wanted to show the simple quilting I did, which might help someone else. When I was researching this I never did see how it was quilted. This pattern has many names, it is actually a type of card tricks but made larger. If you search "Strata Star" on QB you will get lots of info. There are also some YT videos showing the concept but they never give the measurements for the triangles.