I consider these starter kits which could have some of your own stash cut and added to them. Below are some of the pieces I have made from similar groupings plus a test with these actual squares.
This one is the test designed with this actual kit. Below are 2 made with similar fabrics. Both square ones are made with 196 pieces. The rectangular piece is made with 520 pieces. In the previous post see photos of all 3 kinds of kits.