What does Ysrael receive as a gift from his father that sparks Rafa's jealousy in the story, Ysrael?

Ysrael's kite, sent to him by his father, sparks Rafa and Yunior's jealousy because all their father ever sends them is clothes. The presence of the kite implicitly fuels Rafa's rage towards Ysrael with the added factor of jealousy.