- Star Trek: The Motion Picture
- Star Trek II: The Wrath of Khan
- Star Trek III: The Search for Spock
- Star Trek IV: The Voyage Home
- Star Trek V: The Final Frontier
- Star Trek VI: The Undiscovered Country
- Star Trek Generations
Duranium cylinder one meter in height and 25 centimeters in diameter. These cylinders are used as test objects when evaluating a transporter's operation. The test articles can be beamed to a remote location and back, or simply beamed between pads on the same transporter.