Specification: Item Type: Coffee Puck Screen Weight: 8g / 0.28oz Product Material: 304 Stainless Steel Package List:1 x Coffee Puck Screen Features Double Layer Water Distribution Design: Double layer water distribution has good circulation performance, effectively improve the uniformity of extraction. Prime Materials: This coffee puck screen is made of premium 304 stainless steel, safe and durable, long term use, good use experience. Widely Used: 58mm double layer coffee puck screen is compatible with most 58mm portafilters, filter baskets. Compatible with 58mm coffee machines. Keep Screen Clean: It can effectively prevent coffee grounds from sticking to the coffee machine shower screen. Cleaning shower screen turns to be much easier. Improve Water Distribution: Water can across the puck evenly and reduce channeling effectively, so you can get an even extraction. This small accessory is a good gift for baristas and coffee lovers.