Stay alive: some holes in the top of the container to keep the bugs alive and the grid below helps you measures the size of the insect. Convenient for use: put the insects you caught in the bottle the grid below measures the size of the insect and the top cover is a magnifying glass which designed to zoom in on your insect and see the details Manufacturered by NUOBESTY. Educational experimental supplies: good educational and fun experiment and activity for school classes home schoolers scouts and any other group stimulating kids interest to explore and study. Quality material: made of quality plastic durable and lightweight. It will bring a lot of fun to the outdoors and really focus the kid and adults on nature world. Magnifier lid: you can view the insects more detailed through the clear lid. Kids can learn about the structure of bugs and insects through the viewer.