This is a pre-printed piece of indigo cotton with a pattern of Kaku Shippo, a geometric design that creates a 4-pointed star and is wonderful for learning sashiko stitching. 

The fabric measures 13" x 13" (34 cm x 34 cm) folded in half and is printed with dye that will wash out. 
 
Olympus #202
Made in Japan
100% Cotton