| 摘要 |
PURPOSE: A shock-absorbing support is provided to reinforce enough strength with beauty exterior and to prevent shrinkage. CONSTITUTION: A shock-absorbing support for jumping comprises obstructed lower end and hollow form at lower end. Various cushion member(16) is formed in cylindrical, corn, and ball. The cushion member is formed with various materials having elasticity. The strength and elastic shocking-absorbing support are controlled by filling air in a certain pressure.
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