This precision 4.5 x 4.5 inch quilting ruler is an essential tool for creating perfect half square triangles in your quilting projects. The clear acrylic ruler features easy-to-read grid lines in a contrasting yellow color that makes measuring and cutting a breeze. With measurements clearly marked along all sides and convenient 1-inch grid squares, this ruler helps maintain accuracy in your patchwork pieces. The ruler includes a small hole for convenient hanging storage.