I worked in a fabric store and have tried every product I could find to keep my rulers from slipping. Nothing worked until I found Grip Strips!
Grip Strips by Guidelines4Quilting - Moore's Sewing
Grip Strips are practically invisible with a 3M adhesive that bonds them more securely to the edges of your ruler or template, but allows them to be removed or repositioned without leaving any sticky residue. Each package contains six 11-3/4 inch strips, enough for a 6 x 12 and a 6 x 24 inch ruler. Or, cut the Grips Strips to fit any size ruler or template. Made in the USA.
Guidelines4quilting Crystal Clear Grip Strips 6/Pkg
Non-slip Grip Tape for Quilting Rulers, Patterns, Etc. - UK
Connect your rulers with a Quilt Ruler Connector to make them longer or turn them into a corner square. The Quilt Ruler Connector's built-in alignment tabs make it easy to align and connect rulers that are the same width. With four suction cups, a built-in handle, and alignment tabs the Quilt Ruler Connector can be connected end-to-end, side-by-side, or turned into a corner square. Made of polycarbonate, the Quilt Ruler Connector is virtually unbreakable. Made in the USA.
Guidelines4quilting Quilt Ruler Connector
Grip Strips: The Best Non-Slip Solution for Your Quilt Rulers
Grip Strips Trio: The best non-slip solution for quilting rulers and templates by Guidelines4Quilting. Learn More.
Grip Strips Trio by Guidelines4Quilting
Grip Strips are practically invisible with a 3M adhesive that bonds them more securely to the edges of your ruler or template, but allows them to be removed or repositioned without leaving any sticky residue. Each package contains six 11-3/4 inch strips, enough for a 6 x 12 and a 6 x 24 inch ruler. Or, cut the Grips Strips to fit any size ruler or template. Made in the USA.
Guidelines4quilting Crystal Clear Grip Strips 6/Pkg
Invisi-Grip Non Slip Material 12 1/2 x 1yd
eSheep Designs: Make Your Own Ruler Grips in 5 Minutes
Grip Strips for Quilting
Guidelines 4 Quilting - Guide Lock Strips
Grip Strips, Guidelines 4 Quilting #QR-GS
Guidelines4quilting Handle/Multi-Width Ruler Connector, Clear