The Precision Ruler Guide PRO is a ruler system designed for use on the Q-Series PRO Frame that allows quilters to quilt long continuous lines in all directions and angles without worrying about ruler slippage. Its extension bar clamps onto the deadbar, and can easily be moved anywhere on the deadbar for the desired angle or placement of the ruler. The system includes one extension bar with deadbar clamp, a 28" long acrylic straight ruler with hub and clamp for attachment to either the extension bar or directly to the deadbar and an 18" acrylic straight ruler with its own hub and clamp. This system is great for modern straight line quilting, crosshatching and stitching in the ditch.