Quilt Gallery ruler grippers are here!! You won’t believe how much this tool will make a difference in your cutting accuracy! They are the perfect tool for quilters who use rotary cutters or rulers. They will ease the stress on your hands and wrist, while the strong suction cup allows maximum control. Just position the handy gripper on your favorite ruler, press down the levers and you are ready to go! This dual suction cup grip is approximately 11-1/2-inch x 4-inch x 3-inch .