The Amsterdam Black Extra Strong Poppers 10ml is a quality product made from pentyl nitrite and is the black, hard version of Amsterdam Poppers. Amsterdam Poppers have been on the market for as long as there have been poppers. The Amsterdam family consists of various Amsterdam Poppers, for example. e.g. Amsterdam Special Poppers, The Real Amsterdam Poppers, or New Amsterdam Poppers. The black, hard version of Amsterdam Poppers takes you on a sexual adventure and should definitely not be missing from your poppers collection. Try Amsterdam Black Extra Strong Poppers during your next hard session.