Recasting something from an antique is pretty special; and that’s exactly what Tierracast did with this sweet button. The story goes they found an old, glass button from the Czech Republic and decided to remake it in metal. Great job, team! Made in California by TierraCast® of metal both lead and nickel-free. They are considered hypo-allergenic.This is a great button for almost any project with its shank generous enough to fit up to 2.0mm leather.