These high-quality Japanese needles are a product of true attention to detail. The nickel plated steel needles are polished lengthwise to ensure smooth fabric piercing, and the eyes are polished on both sides for easy threading. These needles are flexible and warp resistant, running smoothly through fabric. Needle sizes in mm, thickness x length: 0.69 x 48.0, 0.61 x 45.0. Quilt Basting Needles by Hiroshima from Tulip Corporation of Japan, Long/Regular size with Superior Polished Finish.