Qtools On The Dot - Repositionable Markers: Save Time - Easily Align Ruler - Easy to Apply, Reusable

These re-positionable markers save time when squaring up or aligning your ruler to a specific point, they are easy to position on the ruler and are reusable! Two ways to find a point: use the center circle to quickly align a specific point, with the four corners as the cross-hairs, or use the ends to point to a particular spot on the ruler.