3 3/4in x 11 1/2in. The Gypsy Gripper's suction cups willwork with smooth surface rulers that are at least 4in wide,including most rectangle, square or triangle shapes. Useit with just one end attached on square or trianglerulers and it still grips perfectly.
Quilt store samples and quilt tops available for sale!! We will ship Priority Mail to you. Call store for purchase Monday- Friday 9:30 -5:30 Saturday 9:30- 4 pm