Two ends can form shapes The strength of the profiler is that one end is a pulley, the other end is a tip, and both ends can form shapes. The chuck can move up and down. The spindle chuck can move up and down in the middle, which is convenient for changing the spindle. Plug end Small size for easy storage This profiler is very easy to carry and store, as it measures only 23 x 3.5 x 2.7. Feel free to put it in your pocket. Firm Grip Pen Hold the pen firmly in the center and draw by sliding it. Metal ruler body, pressure-resistant and drop-resistant Sturdy and durable with internal pressure lock Steel wheel bearing, smooth and wear-resistant The steel wheel takes shape with a large outline, and the drawing line takes shape smoothly < / p> Pointer type, more accurate Accurate shape measurement, worry-free measurement