Looseness and tightness can be adjusted according to your needs Our Outline gauges is especially suitable for drawing the Outline of irregularly and complex objects Easy to Use: Adjustable with single hand Fix the pencil in the centre and draw as you push Easy to draw lines without mistake Pen holder can be moved up and down for easy change of modelling end It can be locked and fixed after each to ensures accuracy The Outline Scribes tool is make of aluminium Alloys with steel roller bearing, and the length is extended to 300mm, making it more widely used Pulley and pointers designs for both ends Drawing is smooth on the pulley side and easy and more accurate on the pointers side, Manufacturer: Tsophreniq