Flexible Drain Unblocking Rod Metal Long Sink Unblocker Cleaner Snake Tool 1 mtr A flexible metal drain unblocker is a tool used to remove clogs and blockages from drains. It is made of a long, thin, flexible metal rod that can be inserted into the drain and bent to navigate through the pipes, reaching the clog or blockage. The end of the rod is typically equipped with a hook or other attachment that can grab onto the clog and pull it out of the drain. Flexible metal drain unblockers are often used in bathrooms and kitchens to remove hair, soap scum, food particles, and other debris that can accumulate in drains over time.