Our keyboards arrive with rubber shims already installed on the hinges, as well as an extra set of shims for other tablets with different thicknesses.
If rubber shims are removed from the keyboard, they can lose their adhesive quality, and replacements are likely needed. They are available here!
The Brydge 12.3 arrives ready to fit the Surface Pro 6, Surface Pro 5, and Surface Pro 4. For the Surface Pro 3, the shims will simply need to be swapped out with the extra set that comes with your keyboard.