These are a pair of speaker enclusures based on the Goldwood Sound GW-205/4S 5.25" subwoofers and the Pioneer TS-T110 7/8-Inch Hard-Dome Tweeter. The eclosures are ported in the rear behind the tweeters. They are designed for easy assembly using your favorite plastic adhesive. They were printed using PLA + with 4 wall loops for extra strength.