I bought some a few years ago from
Shapphire products in the UK
Sapphire Products Limited
Units 4 - 6 Dunton Industrial Estate
Mount Street, Nechells, Birmingham, B7 5QL
Tel : 0121 326 6000 or 0121 327 4868
Fax : 0121 328 5518
http://www.sapphireproducts.co.uk
Jim Keller