These are containers specifically designed for carrying and keeping crickets for a week or longer. The technologically advanced lid features a viewing/feeding window on the top, with two dark tubes with clear caps and flappers that cover the opening when the cylinders are removed, and a carry handle. The dark textured cylinder provides an ideal place for crickets to hide, and they are removable for easy feeding of reptiles, amphibians and birds. Contains detailed instructions There is two sizes available:- Medium up to 30 crickets Large up to 150 crickets