花了點時間較準確的測量一般手環（金剛結與pq結）所需的線長
當然，長度再長一點心無所謂，
但若能剪剛剛好線，也能避免浪費呀～
Before to make a waxed silk cord knot bracelet , something you should know
how long the cord you should prepare first
by my experience .....please see the photo
作品範例
