Portafilter with an attached dosing funnel, which is a common accessory for espresso machines.
A portafilter is a handle with a basket used to hold ground coffee for brewing espresso.
The attached funnel is designed to sit on top of the portafilter basket to prevent coffee grounds from spilling during the grinding and dosing process, ensuring a clean and efficient workflow.
The specific portafilter shown appears to be a 51mm bottomless portafilter, potentially compatible with models like the Delonghi EC680/EC685 or similar machines.