RSVP Endurance Stainless Steel Kitchen Sink Strainers (Set of 2) Strainers feature fine mesh that will catch even the smallest particles Use to prevent from causing damage to your sink piping, but let the water through Insert the smaller strainer into the drain, and rest the larger on top for optimal filtering 18-8 stainless steel Flange and wires both firm and resistant to bending Wires gripped and kept in place by two layers of flange pressed together