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 5.0 (1 customer reviews)
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6 out of 6 people found the following review helpful
  The Sonic Nobirura Extendable..., October 29, 2013
The Sonic Nobirura Extendable Ruler is a must for any math, science or OCD student out there! With its retractable feature, this ruler can be easily stored in a regular pencil bag, then extended for its full potential when needed. At first, I was skeptical of the section that slides out. I thought maybe it would break off easily, come loose or get stuck. To my great and happy surprise, the extendable section slides out of position smoothly and clicks into place to line up for the full 30 centimeters. With the clear body, it is easy to line up with ruler with anything and will surely fulfill any OCD tendencies.
I do caution you that sometimes the second half (extendable half) will bend side to side under pressure, so your lines may sometimes be crooked. To make sure it does not move, hold down both sides of the ruler with one hand--your thumb on the extended portion, your middle three fingers on the clear section, and your pinky and palm on the table or solid surface.
Enjoy