Comments about Quill Brand� Mechanical Pencil Lead Refills; 0.5mm:
The lead is so weak that it frequently breaks while you write. I wouldn't buy it again.
Bottom Line No, I would not recommend this to a friend
Merchant response: Each and every Quill Brand® product is guaranteed for life. If you’re not 100% satisfied with your Quill Brand® product, we’ll replace the item with a national brand or refund your money.