Deli Multi Color Yocoo Flexible Ruler 15″ cm. Very elastic, unbreakable rulers. Available in sizes: 15 cm. environmental protection, Ideal for school & technical drawing. Use best stationery at work or school. Available in the colors (Mix) Green, Blue and Pink. Size: 15 cm. Used for Decimal and fractional measurement number. Color: Multi Colors. 1 Piece ruler in pack.