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$5
Selling three sided triangular ruler
Really convenient for graphing, designing, scaling.
check link below for more info:
http://www.amazon.com/Staedtler-12-Inches-Architect-Triangular-98718-31BK/dp/B001E67XZ4/ref=sr_1_1?ie=UTF8&qid=1346140439&sr=8-1&keywords=three+side+ruler
Please do not message this poster about other commercial services.
