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 gold plated eyes are polished on both sides for easy threading. Simply push a strand of thread down through the slit on top the eye to thread these frustration-free needles. Needle sizes in mm, thickness x length: 0.89 x 42.5, 7.76 x 38.0, 0.71 x 36.5. Easy-Threading Needles by Hiroshima from Tulip Corporation of Japan, Assorted sizes.