Cross Bar Stabilizer: 100% graphite stabilizing bar midway in the
throat of the racquet to reduce twisting and provide a more solid feel.
Precision Michael Chang Titanium, Graphite Classic.
横梁稳定器：100%碳素稳定器，置于拍喉中间，以减少拍身击球时的扭曲，增强球感。
用于张德培网球拍和 Graphite Classic
网球拍
Double Bridge: Clear dampener inserted between two parallel graphite
bridges reduces string and frame vibration.
双桥：在两个平行碳素横梁中间插有透明阻尼器，以减少球线和球拍的有害震动。
GraphitExtreme: Princes premium grade graphite/carbon composition,designed to increase stiffness and power, while maintaining light weight.
强化碳素：Prince 的最高级的碳素化合物，用以加强球拍的硬度和力量，而不须增加球拍的重量。
