  We construct two classes of the magnetohydrostatic equilibria of the
axisymmetric flux tubes with twisted magnetic fields in the stratified solar
atmosphere that span from the photosphere to the transition region. We built
the models by incorporating specific forms of the gas pressure and poloidal
current in the Grad-Shafranov equation. This model gives both closed and open
field structure of the flux tube. The other open field model we construct is
based on the self-similar formulation, where we have incorporated specific
forms of the gas pressure, poloidal current and two different shape functions.
We study the homology of the parameter space that is consistent with the solar
atmosphere and find that the estimation of the magnetic structure inside the
flux tubes is consistent with the observation and simulation results of the
magnetic bright points.
