These are replacement stainless steel filterscreens for your French press. These are the main culprit when grounds start to escape around the side of the plunger. Screens usually last a year or so before they become damaged on the edges and allow grounds to pass.
The screens have the following dimensions:
3 Tasse (16 oz) 3" diameter4/8 Tasse (32 oz) 4" diameter
12 Tasse (48 oz) 5" diameter
Please note: the center hole diameter (where the stem of the press pot plunger fits) on the 3 tasse is 3/16ths diameter and on the 6-8 tasse and 12 tasse is between 1/4th and 5/16th diameter.