Actual Material: Copper, environmentally friendly Size: Width: 12.7 cm Length: 3 m or 6 m Made of pure copper. Stiff, flexible, and durable. No chemicals added. Compared with steel wool, copper mesh does not rust and will not leave stains on brick or wood. Copper mesh is ideal for distilling. We recommend using a pound of copper mesh inside your still column. This copper mesh can be used to block holes of any shape and size. Easily cut, shaped, and installed. High-quality copper mesh is great for art projects. Copper mesh is ideal for stuffing soffits to prevent birds and insects from entering. Also effective for deterring slugs and snails from damaging plants. Easily cut with scissors. Soft and flexible. Tips: 1. Cut the copper mesh to the desired length with scissors. 2. Stuff, push, or pack it tightly into any small crack, hole, gap, or opening. Ensure it is tightly compacted so it cannot be pulled out or loosened. Note: Due to different measurement methods, the product size may vary slightly from the stated dimensions. Due to differences in monitor displays, the image may not reflect the actual color of the item.