The finished size is approx 12.5cm (at widest point) by 95cm.

Tension: 30 stitches and 28 rows to 10cm over k1, p1 rib using 4mm needles

You will also need:
Black Button
10cm of 3mm wide flat black Elastic

2 balls King Cole Merino blend DK Wool in Copper
1 ball King Cole Merino blend DK Wool in Snow White
50cm length black Yarn