This is a set by lego clone: Enlighten Brick. It is good for lego towns with a smaller budget, that need a main battle tank, because it is cheap and relatively easy to find on sites such as Ebay and, unlike most lego clones, it actually looks like lego. I will be keeping this tank untill I can afford to buy a custom lego main battle tank of Ebay, so please don't critiscise me because this is not lego; as custom lego main battle tanks are very expensive.