The 2 x 2 x 2 monkey fist and loop are whipped with brown waxed cotton thread for a secure and handsome finish.
And yes it is possible to slide these big knots around on the line, it just takes a little push.
A similar design you might like is here.
Read about how to adjust the size of these bracelets here.
There is a collection this unique design rope bracelet Available here.
design and photographs © copyright 2012 WhatKnotShop