Jelly Tubing

297TR(H) : Heavy - Blue

297TR(M) : Medium - Orange

297TR(L) : Light - Pink
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*Material : TPR
*There are three resistances in one Jelly Expander,and it will
  perform different resistance by holding the different hole.
*The inner hole of the tubing is heavy resistance,and the
  outer of the tubing is light resistance.
*It is suitable for people training from light resistance to
 heavy resistance.