38G 18-piece set Spiral 42G 20-piece set Regular Thin Needles In my experience, the needle tips are twisted, making them more prone to tangling than straight needles. Even with the thicker needles, the puncture holes are less noticeable than others, so I've been using them for a long time. There was an incident where one needle was damaged during shipping. This is expected to happen rarely, but we cannot offer any warranty or compensation, so please understand and accept this! I've been using these needles for a long time, but they are not available at retail, and I purchase them in bulk, so I'm offering them in smaller portions before they rust! I will discount the shipping cost for combined orders, so please contact me beforehand!