Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Use this with Andis 2 speed clipper to shave our new heavily matted puppy.

Our 7lb Maltese came to us heavily matted and we used this blade to shave off all her hair. It struggled getting through very dense mats, because the longer teeth prevented the mat from reaching the cutting depth of the blade. The blade cuts through non-matted hair effortlessly. I really mean effortlessly.