Kokuyo True Measure Ruler - 15 cm

The True Measure Ruler is an award-winning product released by Kokuyo. Every year Kokuyo hosts a product design competition and gathers innovative stationery design submissions from all over the world. This ruler is designed by Hiroaki Sakai in 2014, which improves the accuracy of scale marks on rulers. Ordinary rulers use thick lines to showcase scale marks, in which the width of the line itself creates a 0.1 to 0.2 mm error.

Kokuyo TZ-DARS15 Ruler, Real Ruler, 5.9 inches (15 cm) : Office Products

I tried using KOKUYO's 'real ruler' that can measure the length accurately with 'scale line without width' - GIGAZINE

I tried using KOKUYO's 'real ruler' that can measure the length accurately with 'scale line without width' - GIGAZINE

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Kokuyo TZ-DARS15 Real Ruler 5.9 inches (15 cm) : Office Products

コクヨ KOKUYO DESIGN AWARD 2014 優秀賞 本当の定規 True Measure 15cm TZ-DARS15 : tz-dars15 : 萬屋本舗 - 通販 - Yahoo!ショッピング

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I tried using KOKUYO's 'real ruler' that can measure the length accurately with 'scale line without width' - GIGAZINE

KOKUYO Ruler Real Ruler 15cm TZ-DARS15