Using the light-weighted Balsa, coated with titanium layer to enhance a force giving out from the surface. While striking, force will be giving out from the core balsa part, like regulating by a spring aiming at the target. 採用超輕木 (Balsa)，加上鈦金屬沙塗於板之第一層， 將力量在表面發出， 在打擊時力量由中間之Balsa 發力， 有如彈簧一樣可以在控制下，準確地打到目標上。
