It's Sew Emma #ISE-779. Each pad makes 42 Square-in-a-Square quilt blocks. 3" Square in a Square Quilt Block Foundation Paper. Unfinished block size is 3 1/2".
3.5" Square in a Square Quilt Block Foundation Paper from its Sew Emma ISE787
4" Square in a Square Quilt Block Foundation Paper from its Sew Emma ISE780
6" Square in a Square Quilt Block Foundation Paper from its Sew Emma ISE796
1" Square in a Square Quilt Block Foundation Paper from its Sew Emma ISE784
5" Square in a Square Quilt Block Foundation Paper from its Sew Emma ISE795
4.5" Square in a Square Quilt Block Foundation Paper from its Sew Emma ISE788
