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Made of quality wood material
Styles both boys and girls will love
ÿIf you arenƒ
Rock up to school with pride
Easy to sharpen with any quality sharpener
Helix Engineers Scale Ruler Mugs Made of quality wood materialK85X10 K85010 This Helix ruler is a stylish scale ruler suitable for architects. The Helix Engineers technical scale ruler has markings of 1: 1, 1: 10, 1: 2, 1: 20, 1: 5, 1: 50, 1: 25, and 1: 250. Scale rulers are used by architects and engineers to calculate dimension in a blue print or building plan without the use of time consuming and complicated math equations. The ruler would be ideal for use in the office or at home.
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