Shimada's Ant Room, an ant machine. It's expandable, so you can connect more as your colony grows. The lid of the feeding area has been modified with mesh for better ventilation, making it less susceptible to moisture. The feeding area uses cut straws, but some samples are included. Everything in the photos is included. I was keeping Camponotus japonicus (Japanese carpenter ants) in it. It has only been washed with water. Please examine the images carefully for any dirt or wear and tear before considering a purchase. - Materials: Plaster, glass, plastic feeding area - Accessories: Transparent tube, mesh cover Thank you for looking.