The tap will fit a 26mm hole and the long pipe fits to the outlet of the tap. On the end of the pipe is a valve, that when pressed against the bottom of the bottle allows the wine, beer, lager or cider to flow.
Little Bottler - Bottling Stick With Tap - Homebrew Beer Winemaking Cider
Little Bottler Complete Youngs Bottle Filler with Tap Homebrew Beer, Wine, Cider
Little Bottler Bottling Stick With Tap Easy Automatic Homebrew Bottle Filler
Little Bottler - Bottling SET - The Easy Way To Fill Your Home Brew Bottles
Little Bottler - Bottling Stick - The Easy Way To Fill Your Home Brew Bottles