How to sew medium elastic band on frontal wig 1 minute Hair Tutorial You will need: sewing thread, sewing needle, medium size elastic band and scissors. How to measure your head: Stretch the elastic band around your head as shown on pictures. Make sure is not too tight this can cause headache. Use medium size elastic band Cut band to fit head measurement. Sew the end of the band on the left side of your frontal Sew the other of the band on the right side of your frontal.