Substrate for exterior walls, for attic construction. One box contains two rolls, each 1m x 50m, brand new. No company name. The outer box has some dirt. This item is not subject to price reduction. Receipts cannot be issued. Shipping will be on weekdays. I don't always check, so replies may take over 24 hours. This item is also listed elsewhere, so it may end early. Returns are not accepted, so please purchase only if you understand this.