Material: Steel wool is soft, thick and fluffy, and can be bent or bent. Steel wool is made up of thousands of high quality metallic fibres, similar to wool. It contains sharp fibers that pets can’t chew Easy to use: The stainless steel wool gap blocker is easy to cut into any size you want. Easy to cut and install, you can use scissors to cut the steel wool to a suitable length. Please make sure to wear gloves provided to protect your hands and avoid being cut with steel wool during the operation and avoid odor Effective anti-rats: steel wool effectively prevents mice to move forward and provides ventilation. Rodent control prevents rats from entering the house to cause damage, so you don’t have to worry about seeing little baddies around the house Does not rust easily: equipped with a mixture unique polyester fiber and stainless steel wool so it won’t rust, fill mesh pads for squeezing into tight or narrow holes or crevices Suitable for many places: use fabric filling to close