The unique Jenerates Crochet Ruler - in centimeters or inches. Unique because the ruler starts at zero at both the inside and outside corners, which means you can use it in whichever way best lets you see your work. The crochet hook gauge is shaped so the hook fits through to let you measure the shaft. The metric ruler covers 2mm to 8mm (14 - 0 UK / A - L US on the imperial version) and the ruler fits a standard-size tension square exactly. These can be made with your logo engraved on them - please see listing for Bespoke Rulers. Made in Scotland from FSC approved cherry wood veneer, and packaged without plastic.