Zoo Med Cavern Kit with ExcavatorThe Zoo Med Reptile Cavern Kit has everything you need to create caverns, tunnels, caves and shelters in your reptiles clay substrate including the substrate! Zoo Med Excavator clay lets you create virtually any environment your imagination can dream up, so go wild and build your reptiles dream home. Everything you need to make caverns, tunnels and shelters Allows you to create a fun, naturalistic habitat for your reptile Zoo Med Excavator Clay