Triks are small soccer traing cards, featuring players and teams from the Spanish soccer league. They are about an inch in length, and are in the shape of a pentagon, with numerous notches which lets them be combined together to form much larger structures. You can collect Triks from small bags of snacks in Spain. Some of the Triks feature David Beckham, Ronaldo, Ronaldinho, and the teams, (Real Madrid, Barcelona, Valencia...)