Easily measure on the go with the ESCALA Scale-Ruler Fountain Pen. Ideal for architects, designers, and engineers, this everyday carry doubles as a scale-ruler. The ESCALA Scale-Ruler Fountain Pen is graded with 12 imperial and metric scales. The metric scales include 1:20, 1:50, 1:100, 1:200, 1:400 and 1:500. Similarly, the imperial scales include 1/32, 1/16, 1/8, 1/4, 1/2 and 1. In addition, the 1:100 scale also works as a regular centimeter ruler while the one-inch scale works as a regular..
from The Gadget Flow http://bit.ly/2B61zGd
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