An object declared using a pointer

#if !defined VolumesH
#define VolumesH

namespace Volumes
{
class TBox
{
public:
    TBox(double L = 0, double H = 0, double W = 0);
    TBox(const TBox &Box);
    ~TBox();

    void setLength(const double L) { Length = L; }
    double getLength() const { return Length; }
    void setHeight(const double H) { Height = H; }
    double getHeight() const { return Height; }
    void setWidth(const double W) { Width = W; }
    double getWidth() const { return Width; }
    void setDimensions(const double L, const double H, const double W);

    double Area() const;
    double Volume() const;

private:
    double Length;
    double Height;
    double Width;
};
}

#endif	// VolumesH

#include "Volumes.h"

namespace Volumes
{
TBox::TBox(double L, double H, double W)
	: Length(L), Height(H), Width(W)
{
}

TBox::TBox(const TBox &Box)
	: Length(Box.Length),
      Height(Box.Height),
	  Width(Box.Width)
{
}

TBox::~TBox()
{
}

void TBox::setDimensions(const double L, const double H, const double W)
{
	setLength(L);
	setHeight(H);
	setWidth(W);
}

double TBox::Area() const
{
	return 2 * ( (Length * Height) +
		         (Height * Width) +
		         (Length * Width) );
}

double TBox::Volume() const
{
    return Length * Height * Width;
}

}    // namespace Volumes

#include <iostream>
#include "Volumes.h"

using namespace std;
using namespace Volumes;

void GetDimensions(TBox *Box)
{
    double L, H, W;

    cout << "Specify the dimensions of the box\n";
    cout << "Length: "; cin >> L;
    cout << "Height: "; cin >> H;
    cout << "Width:  "; cin >> W;

    Box->setDimensions(L, H, W);
}

void ShowProperties(const TBox *Box)
{
    cout << "\nBox Properties";
    cout << "\nLength = " << Box->getLength();
    cout << "\nHeight = " << Box->getHeight();
    cout << "\nWidth  = " << Box->getWidth();
    cout << "\nArea   = " << Box->Area();
    cout << "\nVolume = " << Box->Volume() << "\n";
}

int main()
{
    TBox *Box = new TBox;

    GetDimensions(Box);
    ShowProperties(Box);

    delete Box;
    Box = NULL;

    return 0;
}