These rulers were designed to give ultimate accuracy when it comes to measuring; marking and cutting your pieces out. Rulers feature clear acrylic construction with black and yellow marking and instructions for use. This package contains one 1X6in rule.Quilt Ruler.Acrylic.These rulers were designed to give you ultimate accuracy when it comes to measuring, marking and cutting your pieces out..Dritz Omnigrid Quilter's ruler measuring 1" x 6" features clear acrylic construction with black/yellow marking and instructions for accurate measuring.