Corrugated brass pieces, for roofing sheets, fences and cladding.
Each hand-made piece is approx 32x10mm in size, and corrugated on a 1.5mm pitch (the pitch is the width across one complete corrugation).
Each pack contains 10 pieces of sheet.
For O scale that would be about 4' 6" long by 17" wide, with small corrugations (e.g. put it on a compost bin)
For OO scale would be the equivalent of a sheet 8' long by 2' 6" wide, with medium corrugations (e.g. shed roof, or fencing)
For N scale would be a 16' long by 5' wide sheet with large industrial sized corrugations (e.g. industrial unit/warehouse roofing)
Photos : the photo shown with the greenhouse etc is a small diorama using a few kits. The fence at the back is made from the corrugated brass sheets, with matchsticks for fence posts and strips of cardboard for the horizontal rails. I stuck it together with dots of epoxy, then distressed it a bit on the top edge for a few dents, then primered & painted with acrylics.