The Metal Earth models are amazingly detailed etched models that are fun and satisfying to assemble. Each model starts out as 4 inch square metal sheets and you simply pop out the pieces using wire cutters and follow the included directions to assemble your model. The Praying Mantis's name comes from the Greek word meaning prophet because they appear to be praying when their forelegs are clasped together. They are carnivorous and are equipped with sharp spines along their front legs to grasp prey. The mantis is a very unique insect in that it can turn its head 180 degrees, has only one ear and some are large enough to capture humming birds. The model is 4.7x3.5x1.55 inches when built. No glue or solder needed. Difficulty level: Moderate. No glue or solder needed.