These acrylic grid stamping blocks are exclusive to Catherine Pooler Designs, you won’t find them anywhere else! Why do we love these blocks? the indentations are the perfect fit for your fingertips the etched gridlines help you line up your stamps sized to fit the most commonly used stamp sizes lightweight for their size The 9 Block Bundle has ONE of each of the following sizes: Small Square: 1-1/2" square, great for small filler images Medium Square: 2" square, great for slightly larger small stamps Small Rectangle: 1-1/4"x 3-1/2" rectangle, perfect for sentiments Round: 2.75" circle, awesome for most stamp sizes Round: 3-1/4" circle, awesome for those stamps just a bit larger Square: 4-14" x 4-1/4" square block for larger stamps Long Skinny Rectangle: 1-1/4" x 6-1/8" rectangle, perfect for long skinny stamps Long Rectangle: 2 1/2" x 6 1/8" rectangle, perfect for long border stamps Extra-Large Rectangle: 4 7/8" x 6 1/8" rectangle, perfect for extra large stamps or wanting to stamp with several stamps at once Use the etched grid lines to perfectly line up images next to each other.