ok I find out, now like this:
if(SHOW_DESCRIPTION)
{
if(strlen($data_array[6]))
{
$this->Cell($data_array[0]+3,5,"",0,0);
$this->MultiCell(180-$data_array[0],5,$data_array[6],0,'L');
$this->Cell($data_array[0]+3,5,"",0,0);
$this->cell(155,5,'M?l: H?jde: ' . $data_array[13] . ' Cm. L?ngde: ' . $data_array[14] . ' Cm. Brede: ' . $data_array[15] . ' Cm.',0,'R');
}
}
Now I have problem with long descriptions go on a new page only with only 2 or 3 lines instead of follow the next item on an new page.