Several variants are also produced by Epiphone Gibson's lower-cost, non-US manufacturer. These include a model produced in korina wood and Epiphone's own "Goth" model, available with a stop-tail or Floyd Rose locking tremolo bridge. Epiphone also produced an Explorer Bass in ebony black and velvet natural finishes with two humbucking pickups and a 34"-scale 22-fret dark rosewood fingerboard. The Explorer Bass employs a set-neck design rather than the bolted-neck construction used in the Epiphone version of the Gibson Thunderbird. (Gibson produced some 32"-scale Explorer basses in the 1980s, including one model that featured a futuristic piezo pickup in place of the traditional pickups found on the other models)