Features: * brand new and high quality. * Made of pure copper, strong and durable *The copper material is anti-corrosion, anti-rust, and non-flammable; due to the knitted structure, it can be easily cut with standard scissors or knives. *Designed to stuff all kinds of openings to prevent unwanted guests, or air from entering your home or office building. It is rustproof and works great to seal weep-holes and around plumbing or A/C vents, and many other places that rodents or unwanted guests enter through *It is also ideal for distillation. * When not in use, always keep the copper column packing clean and dry. Specification: *Material: Copper *Optional size: 12.7x3M, 12.7x4M, 12.7CMx6M (approximately) Package Contents: 1* Copper mesh roll Note: Due to various factors such as display brightness and light brightness, the actual color of the product may be slightly different from the website picture