Amazon.com

Over time, even the most meticulously maintained train set can use a cleaning. This 3-inch-wide, track-cleaning block is designed to be used on LGB's G-scale TOYTRAIN tracks. The tough plastic block features a ridged handhold on one side and a coarse, porous cleaning pad on the other. Just hold the block, run it back and forth along the solid-brass rails, and in a few minutes, you'll have sparkling tracks and a clean electrical connection. --Paul Hughes

From the Manufacturer

An economical tool for safe and quick track cleaning. The cleaning pad erases dirt from the track without harmful abrasives. Long-life 6mm cleaning pad.