Springs as you see in the picture is made for Fire element(Tattvas). We have made it with precision such that the color and shape represent the Fire element.
This spring is an anti-clockwise spring. An anti-Clock-wise spring is used to boost the respective energy field or Devtas. You can place it on the ground or inside the ground as per the advice of Vastu Experts. Also can be stick with the support of a sidewall.