The Woodland Scenics Rail Pal is a two-sided abrasive block designed for cleaning and maintaining model railroad track. The two sides offer 100 and 240 grit grades, allowing you to tackle heavier corrosion or solder buildup on one side and finish with a finer polish on the other. It is also effective at removing burrs from rail ends, making it a handy tool for quick trackwork fixes. Features: 2-sided abrasive block: 100 grit and 240 grit Removes corrosion, solder, and burrs from rail Compact size for quick on-layout use 7/7/26 cs