Tulip Sashiko Needles Big Eye Straight Thin Size. Thin Sashiko Needles. 4 Needles in package. Features: Needle straight from its body to its large needle eye is perfect for sashiko stitching. Steel Sashiko Needles Big Eye Straight Thin Size. Actual needle size is 0.84mm x 51.5mm. Manufacturer Part Number: THN-103E. CHK-THN-103E.