Discover the fascinating world of Mesoamerican ballgame balls, crafted primarily from natural rubber obtained from the latex of the Castilla elastica tree. In some cases, plant extracts—such as those from the Ipomoea alba vine—were added to enhance their elasticity and durability. This technical knowledge allowed for the creation of solid, dense, and highly bouncy balls, a unique innovation for its time. These balls could vary in size and weight depending on the game: from about 10 to over 30 centimeters in diameter, with weights ranging from approximately 1 to 4 kilograms. Their hardness necessitated the use of protective gear and demanded great physical skill from the players. Don't miss the exhibition of an ulama ball at the Cuicuilco Archaeological Zone and Site Museum, a unique opportunity to explore the materials, techniques, and significance of this ancestral legacy in an unparalleled historical setting.