The twin side belts coupled with the twin top belts and extra large carton size capacity make the MAMUTH #SB70 Large & Tall Case Sealer the best choice for more difficult to manage tall, narrow or large cartons. It also manages your very heavy or your very light and narrow cartons without carton crushing or torsion. The Large and Tall has both a top and a bottom tape head to seal both the top and the bottom of your case for you at the same time.