A flange plunger is a plumbing tool designed to clear clogs in drains and toilets. It features a rubber suction cup at the end, which creates a seal over the drain. The flange, a protruding lip, helps the plunger fit securely into toilet bowls, enhancing its effectiveness in dislodging blockages. When using a flange plunger, the user pushes and pulls the handle to create pressure and suction. This action helps to break up the obstruction, allowing water to flow freely again. Proper technique is essential for successful unclogging, making the flange plunger a valuable tool in any plumbing toolkit.