This set of six different pintel (or Pintle) hitches are designed for the back end of a semi truck frame, for show trucks or construction trucks etc. The hitches are 'closed', but can be opened by carving away the top section very carefully. The six pieces all have different light and shape patterns for flexbility of looks to suit what you like. They are offered in the Frosted Ultra Detail materials only. Should there be a problem, contact me via the designer link or via email to modelmechanic@gmail.com Be sure and 'follow' me as a designer, which will make it easier to search my offerings, and learn of the latest releases.