1" grid. Grids are great to use as backgrounds for your applique quilts as well as others. Using a Pounce Pad to transfer grid lines is by far the easiest and quickest way to get those lines drawn. This particular stencil also has a notch at the half inch mark around it so you can easily pounce the one inch grid than line up the lines again with the half inch marks (jog it over and down a half a step), transfer it again and have a perfect half inch grid.