Boye 10-Inch Plastic Single Point Knitting Needles, Size 5 Boye size 5 (3-3/4mm) knitting needles - single point Needle length: 10-inch Featuring boye perfection points - designed for superior performance and perfection, the concave points help prevent dropped stitches Rounded heads allow for fast knitting without yarn splitting. Founded in 1906, Boye Needle Company was the first American manufacturer of crochet hooks and knitting needles.