Includes (3) pairs of aluminum knitting needles in sizes 8, 9, and 10. Each knitting needle measures 10'' long. Size 8 aluminum knitting needles measure 5 mm. Size 9 aluminum knitting needles measure 5.25 mm Size 10 aluminum knitting needles measure 5.75 mm Add this collection of aluminum knitting needles to your knitting supplies and knit your own hats, blankets, scarves, and more! Boye Knitting Needles are designed with knitters in mind! These high quality knitting needles are made of anodized aluminum and come in 3 different sizes. Size 8 knitting needles measure 5 mm, size 9 knitting needles measure 5.25 mm, and size 10 knitting needles measure 5.75 mm. Each pair of knitting needles is 10'' long. Includes (3) pairs of knitting needles, 6 knitting needles total.