OVYEOFR plastic carpet protection mat is suitable for placing on the doorway carpet which can effectively prevent the cat from grinding its paws on the carpet and protect the carpet from damage. Our carpet protectors have a lot of soft nails on the back these nails are 0.16in long will keep the mat close to the carpet not easy to move. The protective pad is made of environmentally friendly odor-free PVC which is practical wear-resistant and transparent. Once you receive this carpet protector just follow the 2 steps to unfold and smooth it. First take out the floor mat press the corners of the mat with a heavy object or blow hot air to accelerate the carpet to unfold. You can cut it into any shape and easily adjust it to match your unique carpet shape ensuring a seamless fit to the floor mat. The rivet liner holds the carpet to the carpet surface but the runner should not be used on hardwood cement or tile surfaces.