[Healthy Food Grade Materials] Made with a 6.35mm barbed tip of 316 stainless steel, our 0.5 micron aeration stones are corrosion-resistant, heat-resistant, and durable. [Unique Mouthfeel] The 0.5 micron aeration stone produces smaller and finer bubbles, incorporating oxygen or carbon dioxide into the liquid faster. This makes sparkling beer, homemade sodas, and other drinks more refined and refreshing. [Larger Contact Area] The Joywayus diffuser stone has a larger contact area than conventional diffusers, resulting in more bubbles and better fermentation results! [Connection Accessories] Connect the barbed tip of the aeration stone to a 6.35mm (approximately 0.6cm) inner diameter hose. The other end of the hose can be attached to the keg using a gas rod, which can then be connected to a CO2 regulator. [Multiple Uses] The 0.5 micron aeration stone is suitable for both oxygenation and carbonation. Use this stone to oxygenate wort and carbonate beer and soda before fermentation. It is also ideal for other beverages. Ideal for carbonating beer in a keg or as an aeration stone for fermentation. The 0.5 mm stone is ideal for carbonating beer in a keg or as an aeration stone for fermentation. For carbonating homebrew. Made of practical, durable, and reliable stainless steel. Produces even bubble dispersion, prevents clogging, and is highly corrosion-resistant.