Westcott Metric Transparent Ruler
- Size: 1 in. x 6 in.
The M-108 is a 30 cm ruler with one edge marked in millimeters and the other edge marked in centimeters.
- The W-30 is 12 in. in length with 1/16 in. graduations on in. side and metric on other
- Also a centering scale
- The W-20 is the same as the W-30 except 6 in. in length
- All rulers are made of flexible plastic
- Product of China