Using the pre-drilled holes in your Size 2.5 or 3 Ruach pedalboard, these locking jack adaptors will simply screw into place with the 2 screws supplied.  You can install up to 6 Ruach Solderless Locking Jacks onto your Ruach pedalboard.  
 
Pack of 2 locking jack adaptors in black.
Use with Ruach Locking Jack Adaptors and Ruach AC Power Inlet (not included).
 
Features
Fits all 3rd Generation Ruach Hardwood Size 2.5 and Size 3 Pedalboards
Simple 2 hole fixing
Screws for mounting the adaptors and screws for mounting 6 x Locking Jacks included
2mm wood bit for easier install of Locking Jacks and instruction sheet included