This is a pre-printed piece of indigo cotton with a pattern of Asa No Ha, a geometric design representing hemp leaves), very handy for learning sashiko stitching. Sashiko is a traditional Japanese style of quilting that is often used for decoration.

The fabric measures 13" x 13" (34 cm x 34 cm) folded in half and is printed with dye that will wash out. 
 
Olympus #206
Made in Japan
100% Cotton