JEN KINGWELL DESIGNS MILLINERS SIZE 10 NEEDLES - TEN PIECE Jen Kingwell has been on a mission to develop the very best needles. These needles are made from the finest quality English steel with a double eye punch. There are two Milliner sizes available - Size 10 and 11. The size 10 Milliner is beautiful to stitch with, it is just slightly thicker than the 11 and has a larger eye which can make it a little easier to thread.