4.00mm is too tight, 4,5mm too loose, so I thought what I really needed is 4.25mm needles. These are as rare as hen's teeth. I found Patons rose gold ones online, so ordered 2 pairs, as I always manage to lose 1 needle. They arrived, one pair totally useless as they have a burr on the point, so will have to try to file that one down at some point. The other pair, have gone very rough at the points after 1 childs garment. I have ordered a bamboo pair from Amazon, to see if they are any better. I just wondered if anyone had found any other brand in 4.25mm needles, and if so where?