Complex sentence: It is an extremely elastic ball made of Zectron, which contains the synthetic rubber polymer polybutadiene, as well as hydrated silica, zinc oxide, stearic acid, and other ingredients vulcanized with sulfur at a temperature of 165 degrees Celsius and at a pressure of 3,500psi.
Split into simpler sentences: It is an extremely elastic ball made of Zectron, which contains the synthetic polymer polybutadiene, as well as hydrated silica, zinc oxide, stearic acid, and other ingredients. This compound is vulcanized with sulfur at a temperature of 165 degrees Celsius and formed at a pressure of 3,500psi.