CalTeach Inventory: 18 cm ruler (plastic) (605)

Precisely scaled in 1/16 on one side and millimeters on the other. Features raised beveled edges to eliminate smearing and extra margins at the ends for clear starts and stops. Plumb lines at ends aid in drawing or checking right angles. Hang-up hole.

Westcott See Through Acrylic Ruler 18 inch Clear

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