Create your own nitro coffee, tea, or cocktails right at home with the iSi Nitro Charger. Made of quality stainless steel with an ergonomic charger holder with non-slip silicone grip in a brown accent color. Adding Nitrogen (N2) to cold brew coffee and cocktails initiates a spectacular cascading effect, making the beverage unique, attractive, and personal. Adding the nitrogen to your brews creates a velvety, creamy texture with a long lasting foamy head. Dispense fresh brews for every serving as the iSi designed closed system allows the brew to remain unchanged for several days in refrigeration. Best yet, this charger is NSF-certified, includes a diffuser tip. Backed by a two year warranty for peace of mind, and is dishwasher safe for your convenience.