This is a mini aquarium for small and medium crabs, hermit crabs, and other similar animals. It is a perfect starter kit for children to observe the lives of crabs. The tank is made of high-quality, non-toxic acrylic, which is clear and easy to observe the crabs' activities. The tank comes with a mini staircase and climbing ramp, which provides a fun and safe place for your crabs to climb and explore. The small size of the tank is perfect for small spaces and makes it easy to care for. This hermit crab habitat kit is easy to assemble and clean, and it comes with everything you need to get started. This mini aquarium is a great way to provide a fun and healthy home for your small and medium crabs, and it's sure to be a hit with children and crab enthusiasts alike.