Take an atlas 1.1 meters long and 8 cm wide, on top we put a tape 1 meter long and 3 cm wide. The atlas should be 5 cm longer on each side.
Now we will sew the edge of the atlas 5 cm
Tuck one edge of the belt 1 cm and stitch
Now we will tuck 1 cm of the atlas around the ribbon and overlay the sharpened edge and sew to the end.
Similarly, tuck the edge of the satin at the other end of the belt and stitch
Then take a buckle and wrap the resulting belt in the middle of the buckle. Stitch on the front side of the belt along the edge from two sides.
Voila, the belt is ready!