Reusable ball units able to be repeatedly modeled

Abstract

A reusable ball unit able to be repeatedly modeled in three dimensions, which include magnetic beads fully filled in a ball bag with excellent expansion and contracting ability. Wherein, the magnetic beads have suitable magnetic attraction, thereby, when they are pressed, hit or squeezed by hands to move, the magnetic beads in the ball bags can attract on another to endue the ball units with a contour. The ball units can be modeled repeatedly and stacked in taking advantage of magnetic attraction thereof; so that they can be used for modeling inventive three dimensional articles.

1 . A reusable ball unit able to be repeatedly modeled in three dimensions, comprising at least a ball bag and a lot of magnetic beads, said magnetic beads all have magnetic attraction and are fully filled in said ball bag to make gathering of said magnetic beads.  
     
     
         2 . A reusable ball unit able to be repeatedly modeled in three dimensions as claimed in  claim 1 , wherein 
 said ball bag is made of thin plastic rubber film with excellent expansion and contracting ability.    
     
     
         3 . A reusable ball unit able to be repeatedly modeled in three dimensions as claimed in  claim 1 , wherein 
 said magnetic beads are moved when they are exerted with an external force to render the contour of said ball units capable of being modeled.    
     
     
         4 . A reusable ball unit able to be repeatedly modeled in three dimensions as claimed in  claim 1 , wherein 
 said ball units attract one another by magnetism to crowd and stack mutually.