Aluminium non slip rulers feature a rubber strip on the underside of the rule. This greatly helps to hold the rule in place while you measure, draw or cut along the edge.
One edge is graduated in millimeters and the other has a raised section with the latter being the preferred edge for cutting along. The raised section gives a little extra protection too the hand should you slip with the blade.
There is a slight recess that is the natural place for the fingers to hold down the rule while cutting.
Available sizes are 100cm, 60cm, 45cm and 30cm lengths.