The sisters' knitting gauge ruler is made of birch wood and measures 13.5 x 13.5 cm.

Anna is quite fond of knitting and has accumulated many knitting needles over the years. To help her find the right needle for her current knitting project, she likes to use this practical knitting needle gauge.

"This handy little tool allows you to measure the size of your knitting needles," Anna explains. "It is especially useful when your knitting needles do not have numbers on them."