This is sized for a specific set of cabinets and knobs and will almost certainly require adjusting prior to direct use elsewhere.
The bridge features a fastener that snaps on to the throat of the knob by being sized a little too small It also features two clasps that snap into the left and right arms while being held tight by upper and lower extensions that are sized a little too long.
This was my most significant ‘learn design & learn blender’ project and is currently in active use in my kitchen.
The author marked this model as their own original creation.