Instruct: Classify Amazon reviews into positive or negative sentiment
Query: This is a good quality product

These pins are excellent, much better than the cheap flimsy ones. I can do with 4 or 5 of these pins what I can't do with 20 regular ones. They have a nice coating on them, and they don't tug my hair or scratch my scalp. I got both the 2 1/2 a 3 inch pins, and they make a polished look easy.