Challenge,that's音書 the name of this artwork and he 一銀called it challenge for 2 reasons, fi輛物rst one that it should be finished木道 in a very short time, which is 民玩less than 8 mont拿校hs and other reason 體到that this work was specially光明 for the most grea在花t championship, Th理小e 24 Men’s Handball Worl劇麗d Championship in Qatar.