Instruct: Classify the given review as either positive or negative.
Query: Back Seat Pet Cover

This product is made from high quality materials, but falls short (Pun intended) where the bottom part of the cover goes over the lower front part of the seat. There just isn't enough material to cover the front part of the seat bottom, and it also needs some sort of attachment strap at the center of that section. Every time my dog moves around in the back seat, that front lower portion pulls back, exposing the seat to his nails. Needs some further refinement.