Mod Squad sq c $13.00 USD

This design is part of a series - straight lines and circles.
I think it works best when not sewn right up to seam lines - as shown (that outside grey line shows seam lines - not stitching lines.

Other patterns of this type can be found by searching for

Blocks:  Squares & rectangles
Themes:  Straight(ish) Lines, Modern, Pearls & Circles
Sharon Perry
'http://images.houseofcreations.biz/products/_3/gp_005610.jpg' 'http://images.houseofcreations.biz/products/_3h/gp_005610.jpg'