Manufacturer: LGB Art.-No. 50040 EAN: 4011525500407 Gauge G Track Cleaning Block. Here is an economical method to clean your rails easily and gently. The cleaning pad removes dirt from the rails without harmful abrasives. The 6 mm / 1/4thick cleaning pad will give many hours use. Not suitable for nickel-plated track! 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.