The national technique of which country is the embroidery on balls "temari"?

Temari balls are a folk art form and Japanese craft, originating in China and introduced to Japan around the 7th century A.D.

"Temari" means "hand ball" in Japanese. Balls made from embroidery may be used in handball games and other such similar games (e.g., hacky sack). An accessory similar in appearance (and constructed with similar techniques and materials), but with the addition of a hand-strap (made with either satin cord or ribbon) and a tassel, can serve as an accessory for a kimono; a kimono bag.