Sewing the Hair. 1  1. Thread your needle. Cut a piece of extension thread about 48 inches (121.9 cm) long and thread one end through the eye of a curved needle. 2  2. Secure the weft together. A single hair extension is also known as a weft. 3  3. Make the first stitch.
Climate & Weather Averages in Belfast, Northern Ireland, United Kingdom.
For Belfast, +44 28 from outside the UK or 028 from inside. (Belfast is in Northern Ireland which is part of the United Kingdom and thus uses the UK's country code +44.) For the Republic of Ireland, +353. (The + means whatever your international code is.