This listing is for The Undulator jig that is 24" or less in length. (See The Undulator Set for the whole set of router plate, slide guides, slide poles, and unit lock.) 

When ordering the Undulator jig, please refer to the below name classification so that we are sure to make the correct geometry.)

Example jig name: 3R-.25H-6x24

This means your jig will have a 3" wave radius, 0.25" height from the top of the wave to the bottom of the adjacent wave, and 6" in width and 24" in length.