This 3D model collection on CGTrader is called 6 Tunnel Collection and it includes six different tunnel models suitable for use in various types of projects. The tunnels are modeled and textured in a realistic and detailed manner, making them suitable for use in animations, games, and other visualizations.

The six tunnel models included in this collection are:

1. Sci-Fi TUNNEL

https://www.cgtrader.com/3d-models/space/spaceship/sci-fi-tunnel-2592a166-5e0a-4ae0-8255-e07b8507ae45

1. Abandoned space station

link: https://www.cgtrader.com/3d-models/interior/other/abandoned-space-station

1. SciFi Corridor 02

https://www.cgtrader.com/3d-models/interior/other/sci-fi-corridor-0f69192e-3955-4f84-bbd1-4832bd72a8cf

1. Sci-Fi corridor

https://www.cgtrader.com/3d-models/space/spaceship/sci-fi-corridor-c469db54-1485-4467-9e95-fd01301c3f81

1. Grungy tunnel

link: https://www.cgtrader.com/3d-models/exterior/industrial-exterior/grungy-tunnel

1. Tunnel

https://www.cgtrader.com/3d-models/exterior/industrial-exterior/tunnel-3714552c-ba1e-4b26-a969-5ecdcaceb3ca

The collection has been created using a variety of software programs including 3ds Max,substance painter and ZBrush. In addition, the models come with various file formats including FBX, OBJ, and making them compatible with most 3D software applications.