Many people tend to immediately assume that they have mice problem in there home, but there is also a chance that they actually have rats infested in their home, in their attics and around there home. Not being able to spot the difference right away about which rodent issue you might have, then any prevention measures that you take may not be effective. Finding the correct stainless wool fill fabric is the only chance that you have against a rat infestation. pecifications: 100% brand new and high quality Material: steel wool Color: as shown in the pic Grade: 0000 Total Length: 1.3M Flexible abrasive. High-quality steel wool for cleaning, preparing and maintaining wood and metal finishes. Ideal for applying wax polishes. Crumble resistant and virtually oil-free. Ideal for use with paint strippers.