Share the 'HOW TO' fit a Hooklength in a Hooklength Box article:
Start off by pulling your hook over the peg in your hooklength box.
Wrap your line around the required hooklength peg, making sure you have plenty of line to play with.
Once you've wrapped the line around the peg grab your line with your thumb and index finger, gripping it tightly. Then lift it over the peg.
This loop will form your hooklength loop. The next step is to tie a simple figure of eight knot.
Trim the tag off close to the loop, leaving a few mm to avoid the knot slipping.
Then take your hook and put it in the peg and pull your hooklength loop on to the original peg.