Material: Plastic
Diameter: 1.8cm
Color: As picture shown
Package Include:1 pcs 
Features:
Easy to use, affordable, and quick to disassemble
Cylindrical Airlock with Floating Bubbler
Allows CO2 to Escape, But Prevents Air From Contaminating Your Beeror Wine
Three Piece Design Makes It Easy to Disassemble and Clean
Notice
1u3001Please allow 1-3cm error due to manual measurement.Pls make sureyou do not mind before you bid.
2u3001The color may have different as the difference display,plsunderstand.