User blog comment:JokerJay779/Comic practice/@comment-25466298-20131222005453/@comment-25466298-20131222011530

A skewer is a measuring stick used to measure a certain area. Then you use the measurement of that area to make the height and weigh of the object. To use it, you need to close one eye and hold out your drawing arm all the way (it can be left or right handed).