Do you mean one of these:
http://www.karaya.pl/en/czech-master-resin/0/airco-d-h-5-cmr72-019.html?ref=%2Fen%2Fczech-master-resin%2F0%2F3%2F1%2Fitems.html
Ian M
http://www.karaya.pl/en/czech-master-resin/0/airco-d-h-5-cmr72-019.html?ref=%2Fen%2Fczech-master-resin%2F0%2F3%2F1%2Fitems.html
Ian M