the following example is for you reference.

1, Easy to install, use and clean.
2, Give home cold-brewers the royal treatment
3, Take & share it everywhere (home & outdoor activities)
4, Make nitro cold brew coffee easily at home & DIY the best nitro coffee you've ever had.
5, the nitrogen effect cuts the acidity that is tied to traditional cold brew, making it easier on the stomach.
6, Cold brewed coffee is less bitter & sour, sweeter & oilier, richer flavor, cold storage for 2-4 weeks.
7, PERFECT GIFT for COFFEE LOVERS: 64Oz Nitro Brew Coffee Machine and Nitrogen Coffee Dispenser; Use this cold brew maker to dissolve nitrogen gas for a smoother, creamier cold brew coffee; Nitrogen helps to cut the acidity tied to traditional cold brews to create a more natural taste and a thicker velvety texture that is easier on your stomach
8, MAKE NITROGEN INFUSED COFFEE at HOME: Simply mix cold water or milk with your cold brew coffee base (not included) into the keg and insert the hose, spear valve, and faucet; Attach an 8g non-thread nitro cartridge to the spear to inject the nitrogen gas; Shake the keg well to mix the liquid and gas components and refrigerate for 1 hour or longer; Take this home nitro coffee maker with you to picnics, parties, or camping to share your nitro infused cold brew coffee
9, DESIGNED for FAST and EFFECTIVE CLEANING: Before each use fill the keg with hot water and add 1 tablespoon baking soda or powdered wash; Shake until water runs from the top and allow to soak for 10 minutes; Use nylon keg brush to clean nitro keg; Rinse other pieces with hot water and allow to air dry completely before use or storage
10, SAFE and EASY to USE: Constructed of premium materials, this nitro coffee dispenser is designed for strength, durability, and longevity; Each nitro coffee brewer system features a food grade stainless steel keg, spout, and coffee spear along with various plastic attachments; the coffee spear features a pressure relieving safety valve that will release excess gas once the pressure within the keg has reached 75 PSI