\documentclass[twoside]{article}

\usepackage{showframe}
\renewcommand*\ShowFrameColor{\color{red}}

\usepackage{lmodern}

% Let's set up our page size
\usepackage[
	letterpaper,
%	A4,
	bindingoffset=15mm,
	textheight=250mm,
	textwidth=175mm,
	top=14mm,
	footskip=5mm,
	marginparwidth=0mm,
	marginparsep=0mm
	]{geometry}

\usepackage{tcolorbox}

\usepackage{forloop}
\newcounter{ct} % Create a counter for our loop
\def\lfct{5} % Set this value to the number of pages you want


\begin{document}

% Begin our loop
\forloop{ct}{0}{\value{ct}<\lfct{}}{


\begin{tcolorbox}
The heading information should go here.
\end{tcolorbox}

\newpage


% End our loop
}

\end{document}