From Amazon
Salvequick Cederroth CD6 Pilfer Proof Fabric Plaster refill - Set 6 x 40 plasters - 6444CAP
The product is available from £7.22 at international stores.
Conrad Electronic
Soehngen 1009444V Salvequick Plaster-Strips elastic 6x 40 pieces
Kaiser Kraft
6 packs of elastic plasters, 40 each, 6 packs of elastic plasters, 40 each, pack of 6