Madagascar Hissing Roaches are the roaches you see on t.v. shows like, Fear Factor, and in the scary movies. They make great low maintenance pets or can be used as feeders for the larger reptiles. A great choice for Science or Biology teachers or parents to introduce students and children to the world of Entomology. A perfect, creepy Halloween item. 20 large, 3-4 inch male or female or a combination of both for $10.00