This set includes a Selection Decanting Pourer and a Vacuum Stopper. The Selection Decanting Pourer uses a Venturi pipe to create a vacuum which helps increase aeration by creating a vacuum. There is also a small screen to further disperse the wine allowing even more aeration. The stopper has a built-in pump to remove air from the bottle, allowing wine to last longer when stored. The pourer is 3 3/4" high; the stopper is 3 1/8" high. Both items have room for a custom imprint. Imprint area on clear top: 1/2" X 1/2" Screen/Pad Print or Laser.