LGB makes a track cleaning "block". Might be similar to what you're looking for. Check it out on Amazon...
http://www.amazon.com/LGB-Scale-Track-Cleaning-Block/dp/B000021Y04/ref=sr_1_1?ie=UTF8&qid=1431704745&sr=8-1&keywords=track+cleaner+train
Many years ago I bought what I think was called a "magic track cleaning bar". It is bigger than a bright boy and is grey color. Its about the size of a small stick match box. Maybe a tad bigger. Its also rectangular not angled like the bright boy. It is finally on the verge of wearing out after cleaning miles and miles of track. Best bar cleaner I ever used. Anyone ever seen one or heard of one. Looked on the internet and cant find one.
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