This is an original ant-keeping case made by our store. The Hybrid Nest 2 side type Extra Large glass cover is compact and doesn't take up much space, while also providing a comfortable habitat for the ants. The front and back are glass, allowing observation from both sides. This is a large nest for large colonies. - Humidity is maintained with cotton or sponge on both sides, keeping it clean. (Cotton is included upon shipment) - You can manage the nest's humidity by watering through the holes on the top of the nest. - The moisturizing cotton is visible, making it easy to manage. - The lid uses high-quality glass for clearer observation. - There are connection holes on the left and right sides, allowing you to freely connect nests and feeding areas. - It is built sturdy, allowing for safe ant-keeping. - The glass lid is secured with screws in 8 places for stability. - This product comes with a stand. Suitable for small to large-sized ants found anywhere in Japan (such as Formica japonica and Camponotus japonicus), as well as foreign ants like green-head ants, meat ants, and spiny ants. Even ants that cannot climb glass surfaces, such as green-head ants, will be fine due to the gentle slope. Easy to observe and easy to keep, making it ideal for children's science projects. Materials: PLA (safe material, harmless to humans), cotton Glass: 3mm Size: Approximately 31.5cm x 31.5cm x 3.5cm Stand: Height 2cm x Width 28cm x Depth 15cm Connection holes: For 13mm tubes (inner 10mm) For 8mm tubes (inner 6mm) when using an adapter Tubes for connection are not included. The connection holes on both sides come with an adapter that allows the use of 8mm tubes and a screw-type stopper.