String Theory Merch

This handy tool has everything you need to make a gauge swatch and check your progress along the way. You can identify needle sizes from US 0 to 15...

These handy square tools are used for measuring gauge swatches knit or crocheted in any type of yarn. Simply hold the tool up against your work and...

Measure the thickness of any yarn: Lay yarn into the grooves or wrap it into the inch-wide notch and compare the number of times your yarn fits in ...