- Outer fabric, 22x15 cm (if the outer fabric is thin, iron fusible interfacings to strengthen it)
- Lining fabric, 18x15 cm
- ribbon, 4 cm
Note: 1 cm seam allowance is included.

Thread
Sewing machine
Iron

Place lining fabric on top of outer fabric, right sides together.

Sew with 1 cm allowance.

Sew the other side.

Turn the right sides out, the fabric is now formed like a tube.

Iron the seam allowances toward the lining side.

Flatten the tube and iron it.

Since the lining fabric is shorter, the outer fabric will fold at the edges.

Now we have one lined piece, measured about 18x15 cm.

Turn over the lined piece.

Mark the center points of both of the long sides.

Fold the edges to meet at the center.

Fold the 4 cm ribbon and insert it in one of the sides, about 1 cm from folded edge.

Sew both sides with 1 cm seam allowance.

Trim the corners to make turning easier.

The raw edges are trimmed with zigzag scissors, you can just leave it raw or finish them using zigzag stitches.

Turn the right sides out. Use a rather sharp tool (knitting needle, chopstick, etc) to pick the corners.

Iron the finished case one more time for a neater look.

Make more!