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Cubic Height Ruler / Cubic Height Ruler

Cubic Height Ruler
Cubic Height Ruler

When we lean against the wall and have our height measured, we are always rushing to fix the upper end and the lower end of the measuring tape to ensure that the accuracy of the readings. 
CUBIC HEIGHT RULER  is such a device that applies the priciple of the right angles of cubes to ensure the measuring tape vertical to the ground and display the height readings on its upper end, which is easier for us to read the data.



changsha, China