feature: 1. Elasticity:Material: pure copper material, non-copper alloy. it is a Soft and stretchy mesh fabric made of pure copper. Copper mesh exclusion Natural Charge Made of flat copper wire, you can add copper surface area and increase the effect. 2. Easy to apply: The volume is about 300cm, 6M. flexible. Forming wire reduces airflow. Can be cut to any size, Firmly fill all kinds of holes, can not pull out. 3. Durable and weatherproof: Suitable for indoor and outdoor dry and humid environments, durable, suitable for sealing small animals that may enter Drains, pipes, air conditioners and vents. 4. Anti-rust: This is safer than steel wool and will not rust like steel mesh, Will not leave rust on brick or wood surfaces. it can Used to keep insects out of your garden. Friendly to birds and other wildlife 5. Wide range of application: suitable for most openings, such as holes, cracks, pipes. In siding and foundation eaves, roof tiles, retractable awnings or behind the sign Specification: Material: Copper Size: 12.7CM*6M/12.7CM*3M packing list: 1*Copper mesh 1. Elasticity:Material: pure copper material, non-copper alloy. it is a Soft and stretchy mesh fabric made of pure copper. Copper mesh exclusion Natural Charge Made of flat copper wire, you can add copper surface area and increase the effect. 2. Easy to apply: The volume is about 300cm, 6M. flexible. Forming wire reduces airflow. Can be cut to any size, Firmly fill all kinds of holes, can not pull out. 3. Durable and weatherproof: Suitable for indoor and outdoor dry and humid environments, durable, suitable for sealing small animals that may enter Drains, pipes, air conditioners and vents. 4. Anti-rust: This is safer than steel wool and will not rust like steel mesh, Will not leave rust on brick or wood surfaces. it can Used to keep insects out of your garden. Friendly to birds and other wildlife 5. Wide range of application: suitable for most openings, such as holes, cracks, pipes. In siding and foundation eaves, roof tiles, retractable awnings or behind the sign