| 摘要 |
<p>The present invention relates to a bat for practice, practice assist equipment, for practicing a swing for baseball, golf, etc. The present invention is made of compressed bamboo lumber and has a hollow hole and an air resisting groove on the bat. The present invention is used by inserting a function assist device in the hollow hole. Through a flow of air and a movement of an insertion apparatus, the present invention enables to check various swings at the same time. The insertion apparatus comprises: a propeller; a swing line (flag); and a hollow cap in a semicircular shape. A function of the bat for practice enables to maintain and improve physical strength, to maintain a swing rhythm, a tempo, and a balance as well as self-checking of a swing line and improving practice concentration when a user uses the bat.</p> |
