The Gypsy Gripper's suction cups will work with smooth surface rulers that are at least 4in wide, including most rectangle, square or triangle shapes. Use it with just one end attached on square or triangle rulers and it still grips perfectly.
The Gypsy Gripper has been tested to work perfectly with all of the popular quilting rulers listed below.
Creative Grids - squares 4-1/2" & up, rectangles 4" & up
EZ Quilting - Companion Angle
From Marti Michell - all Kaleido and Triangle and Log Cabin rulers
Lazy Girl Designs - Flying Geese X4 Ruler, Lazy AngleT Ruler
Phillips Fiber Art - Ten Degree Wedge Ruler
The overall size is about 3-1/2" wide by 11-3/8" long by 3-1/8"
