This listing is for a slotted ruler by Creative Grids.
5 favorite things about the Stripology Square Ruler by Creative Grids:
Those slots stabilize your rotary cutter to make perfect cuts.
The Stripology Square ruler is really well made: It has gripping technology and it is a thicker acrylic.
Great graphics! Their rulers are known for their clean easy-to-read graphics.
1 and 2 inch cuts are marked with squares and stars.
Perfect size to take to classes.