Ruler, blackboard, graduated 100: 1cm and 39:1inch strong plastic, 55mm wide, 5mm thick.
Supplied in 2 x 50cm halves to be assembled and held firmly together by a detachable handle.
Measuring range: 0-1000mm.
Resolution: 1mm, tick mark of CM is 2-3 times as much as MM's, marked corresponding figures.
Size: 1020*30*7mm.
For demonstration.
Wood production. White paint, black mark line and red number.
100cm, minimum dividing value: 1cm. Width: 45mm, thickness: 8mm.
