Always knit the right size sock—without the maths! This clever silicone-coated ruler helps you measure sock length accurately whether you're knitting toe-up or cuff-down.

Just place the arrow end snugly into the heel (or toe) of your sock and knit until you reach the line for your desired size—then begin your toe or heel. It’s designed to account for a standard 2" heel and toe, so you get a great fit every time.

Soft, flexible, and easy to use, it even wraps around your wrist like a bracelet when not in use—so it’s always to hand when you need it.