- Steel wool is made of thousands of high-quality metal fibers, similar to wool, which is thick and strong and can be flexibly bent to every corner. ?Keep The Mice Away.?: Mice and all sorts of small animals will enter your home through holes of any shape and size. Steel wool can clog up drains, cracks in walls, ventilation holes, etc. in the house. To create a barrier that pests are unable or unwilling to go through. Effectively prevents mice from entering. ?Widely Use?: Steel wool can be used for indoor and outdoor filling. Such as holes or crevices in brick walls, around plumbing pipes air conditioning units, windows, vents, siding, garage, kitchen, attic and more. Effectively deter rodents, insects and other pests from entering homes or office buildings. ?Flexibility of Use?: The steel wool can be cut with scissors to the corresponding size according to the size of the hole to be filled, and filled into the hole. Take care to wear the gloves provided when cutting to avoid cuts from the steel wool. ?High Quality Material?: Steel wool is made of thousands of high-quality metal fibers, similar to wool, which is thick and strong and can be flexibly bent to every corner. Non-corrosive material ensures durable and reliable performance, that small creature cannot chew through the steel fibers, But air can still pass through. ?Package and Note?: Two separate 10 foot long pieces of steel wool, a pair of gloves. Note: Please inspect the steel wool parts regularly and replace damaged steel wool. Please keep steel wool away from pets and children to avoid being cut by steel wool.