Jelly Expander

1022(H) : Heavy - Blue

1022(M) : Medium - Orange

1022(L) : Light - Pink
****************************************************************
*There are three kinds of resistance in one
  Jelly Expander,and it will perform different
  resistance by holding the different hole.
*The inner hole of the expander is heavy resistance,
  and the outer of the expander is light resistance.
*It is suitable for people training from
 light resistance to heavy resistance.