To balance/enhance the energy of the element, you can use Vastu metal studs element wise.
Check the energy using your vastu tools like pendulum/scanner/lachear antenna and if you required to boost/balance the energy then place 3 to 9 pieces of that elements studs.
Please see the chart of the elements direction wise.
Check the energy using your vastu tools like pendulum/scanner/lachear antenna and if you required to boost/balance the energy then place 3 to 9 pieces of that elements studs.