1、Stainless Steel Material: The 51mm puck screen is made of stainless steel, which is resistant to high temperature and corrosion. It is made of multi layer stainless steel and has better performance than disposable puck screen. The extraction is smoother, more uniform, and more balanced. 2、Good Function: 51mm coffee portafilter puck screen can prevent coffee grounds from sticking to the shower screen of the coffee machine and keep the shower screen clean. 3、Perfect Allocation Tool: The coffee portafilter puck screen can evenly disperse water, increase the amount of solids dissolved in coffee, reduce the need for cleaning, and help you achieve better extraction. 4、Coffee Machine Tool: 51mm coffee portafilter puck screen is the perfect supplement to coffee. It is an excellent coffee machine accessory tool supplement. 5、Make Delicious Coffee: 51mm puck screen lower shower screen can help you make delicious, rich coffee drinks. After use, rinse it with clean water.