The GO! Signature Block is designed to work with the GO! Half Square-3″ Finished Triangle (55009) and GO! Half Square-1″ Finished Triangle (55320). Sew two 3″ finished half square triangles to the long sides of the block for a 4 1/2″ finished square or four 1″ finished half square triangles sewn to the short sides of the block form a 6 7/16″ x 2 1/8″ rectangle. Use this shape to incorporate signatures to personalize a quilt or prepare signature blocks to be signed at showers, weddings and other celebrations.