The packaging and case around the bits that arrived are quite wrinkled, making the cases unusable. However, the bits themselves appear to be of good quality and would cost $2-6 each at most hardware stores. I was a little disappointed to find that there are 3 identical tips each, but it doesn't really matter. I'm sure I'll use supplements after grinding them for a while. Overall, for the price, it's worth it. Even if the packaging is damaged.