The Aramith Super Pro set includes the Super Pro ball set, Jim Rempe Training ball with instructions, Aramith ball cleaner, and Aramith micro towel. Super Aramith pro ball set are constructed from Professional grade Aramith phenolic resin designed in Aramith laboratories. The balls are known for their hardened vitrified surface with ultra-high density for exceptional scratch and impact resistance. Aramith high quality standard have to meet these 8 criteria ball density, balance, diameter, roundness, color, glossiness, hardness, and weight to be Aramith ball.