Creator's Omni-Directional Glass Stops. 
Omni-directional stops for precision alignment using the Waffle Grid for straight or angled cuts.
Plugs directly into the waffle grid and can be adjusted to sit in any position to hold your glass in place. 
These stops are more versitale since they can hold glass in 90 degree angles or in various angles.  
Includes 2 glass stops.