In the title I have already said everything. This is original item by Bialetti. The seals fit perfectly. In addition the price is cheaper than imitators request product. I bought the goods at a price of Speedy 0.98 and 3.00 shipping. Cheaper it gets. For me, the seals keep in once or twice daily use per half a year.
Here's a little tip: Before using the cooking seals in about 10 minutes. Thus, the odor is reduced considerably and the aroma of coffee is not distorted.