LGB Scale Track Cleaning Block
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