Three identical black Streamline frames, 20×20 inches, each matted to 10×10, hung in one row with even 3-inch gaps — about 67 inches by 21 inches on the wall. Square frames with a square opening exactly half their width — the mat is the design.
This is the wide-mat look: a small photograph or print sitting in a generous white border, so the frame carries the wall and the picture stays intimate. Because every frame is the same, the set needs no layout planning — level the row, keep the gaps equal, and the repetition does the work. Sized above a sofa or a long console.
Hanging note: hang the row with its centre at eye level (about 57 inches from the floor) and check the first frame with a level — the rest follow from it.