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 product is not subject to price reduction. Receipts cannot be issued. Shipping will be on weekdays. I don't always check, so replies may take more than 24 hours. Also listed elsewhere, so it may end early. Returns are not accepted, so please purchase only if you understand this.