The Exo Terra® Vines are extremely realistic replicas of their natural counterparts, and can be used for decorative purposes as well as for enlargement of the 3-dimensional dwelling space for your arboreal animals. Unlike natural vines, the Exo Terra® Vines are bendable & twistable, so they will fit any terrarium size. Because natural vines often cannot be placed in the right spot, you can use Exo Terra® Vines, which can be bent and placed where it is most beneficial to your animals.