Specifications: The lid fits any standard ball lock corny beer or soda keg. The keg lid and diffusion stone are made from premium stainless steel, and the keg lid valve is made of durable, non-toxic plastic. This product allows you to carbonate beverages such as beer, soda, water, juice, tonic, or seltzer at home. Type: Carbonating Keg Lid Material: Plastic, Stainless Steel Features: Pressure Relief, Easy to Install, Durable, Includes Diffusion Stone Lid Dimensions: 10 cm x 10 cm x 5 cm (3.93 in x 3.93 in x 1.97 in) (Approx.) Tubing Length: 50 cm (19.7 in) (Approx.) Notes: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Please allow slight variations in dimensions due to manual measurement. Package Includes: 1 x Carbonating Keg Lid 1 x Beer Tubing 1 x Diffusion Stone