Patchwork Pins 2507 by Clover Needlecraft Quilting Supplies and Sewing Notions Moda-2507 Clover Manufacturer: CLOVER NEEDLECRAFTProduct Content: SteelType: .36 mm diameterOrigin: Made in Japan Extra-fine, .40mm pin, which smoothly passes through cloth. Useful when pinning down detailed piecework. Heat resistant glass headed pins. 100 ct.The sharp finish of the pin glides through many layers of fabric. Flat head is convenient for machine stitching and ironing. Head is not heat resistant. Do not apply iron directly. 100 pins.