This is a Preziosa (for 2 people / 350ml) French press coffee maker from Bialetti, famous for its Moka pots. I ended up only using it once because I found drip coffee more enjoyable. So, I don't think there's any clogging. - Brand: Bialetti - Model Name: Preziosa - Material: Stainless steel, glass - Capacity: 350ml - Included items: Box, instruction manual Thank you for looking. Feel free to negotiate the price! Thank you. ☺︎