Features: It is designed to fit most PET soft drink bottles. Well-made - Made of high quality material, healthier and more durable Removable ring style: you can pull on ring to release excess pressure before opening the barrel Easy to install - apply to cheesy keg cap, spring loaded long body and pull ring, a must for homebrewers. With this cap, you can simply fill an old PET bottle with cold liquid of your choice and carbonate by connecting your liquid ball lock disconnect. Create your own water soda, carbonated beer, or even make your own sodas.     Notice: Actual color may be slightly different from the image due to different monitor and light effect Please allow 1-3cm deviation due to manual measurement Description:Product size: 10*6*5cm material: plastic Color: black, Gray and white Package List: 1x Faucet