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خودکار ارگونومیک ergonomic pen
[align=left]The No-Grip Ring-Pen by Grandee - Detailed Information Sheet
The first true innovation in writing tools in thousands of years - a pen which
provides stability and control without gripping!
The original ergonomic pen and still the best!
The RingPen is the direct result of prolonged research which began in an aerodynamic laboratory 20 years ago and is based upon concepts normally applied in the study of aerodynamics and the theory
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