QIFEI 2Pcs Airlock with Grommet Fermentation Airlock Beer Wine Kombucha Brewing Kit 3-Piece Airlocks Clear

Specifications: Fitting: Drill a 12mm or 1/2 hole to fit the grommet. Height: 118mm (approx) Colour: black Material: PP Package Contents: 2 x 3 Pieces air lock with Grommet Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.