"What is distinctive about the Zabbaleen from many other urban informal waste collecting-groups that scavenge trash for useful products is that the Zabbaleen invest heavily in their tools and know-how for recycling.These Zabbaleen micro-entrepreneurs have invested "an estimated 2.1 million Egyptian pounds (LE) (US $ 1⁄4 LE 6.19 -May 2004 rates) in trucks, plastic granulators, paper compactors, cloth grinders, aluminium smelters, and tin processors."