Material: triangularly-polished tip, made of hardened and stainless steel. These leather triangular needles are practical leather craft tool and durable to apply. Shape and function: these leather sewing needles are triangle pointed needle. The triangle penetrates into the leather, then sews and pulls the wire hard, it is not easy to widen or crack the hole of the leather. The needles are deliberately designed to reduce the resistance. Wide application: polished steel sewing needles give you a comfortable grip, perfect for most sewing, threading, stitching, needlework and embroidery , especially for leather project or other leather diy works, some thick clothes or shoes repair. Leather needle size: this package of leather craft needle each length is 1.25*58mm Easy to carry and store: these leather sewing needles are packed in a clear bottle. Can keep needles secure and organized, easy to carry and store.