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10° Sided ruler / Ruler

10° Sided ruler
10° Sided ruler

It is difficult to pick up the ruler on the desktop, because it is too thin.
"10 ° sided ruler" is an easy to pick up the ruler. It's two and a 10 ° angle between the horizontal plane through the lever principle can be easily picked it up from the desktop. Both sides have a tick, very easy to use.

University

Wuxi Taihu College

Wuxi Taihu College
WuXi, China

Jie Wang,
Wuxi Taihu College

Lan Jiang,
Wuxi Taihu College