Ordered replacement tips, but didn’t realize that the fit would become an issue since the screw thread portion and diameter aren’t standard (there is no standard!). After the finding out the fit issue, the contacted Starbond and received excellent customer service. They offered to send a couple of 2oz bottles to help me out, even after I’d offered to pay for it because it wasn’t completely their fault. I cannot emphasize enough on how pleased I was to get the kind of support that is so severely lacking at most places of business. Highly recommend doing business with this company!