Buytra 50-Piece Bow Wire DIY Needle Threader Stitch Insertion Hand Machine Sewing Tool Material:Aluminium Size:Appr.41*17*0.4mm/1.61*0.66*0.01" It can help you wear line into needle effectively Usage: Put the metal wear needle through the pinhole; Thread the wire through the metal wear needle; Pull the pin away from the threader. Package:50pcs Needle Threaders Stitch