Cut your fabric 12cm x 45cm (approximate)
Measure your elastic by the size of your wrist and leave some space for a knot
Turn over the short ends and sew
Fold your fabric length wise – right side inside, wrong side out. And sew 0.5cm from the edge – either by sewing machine or by using a back stitch (nice and strong)
Turn your tube right side out
Secure your elastice to ONE end of the long tube with a safety pin
Attach the second safety pin to the other end of the elastic and use this to fid the elastic through the tube
Knot the two ends of elastic together
Overlap the two ends of the fabric and sew shut