The Volt Dock Tool Caddie for X-ARM size arm posts is a great place to store arm posts, low mode brackets and pins, allen keys and more. It holds 3 arm posts/low mode bracket and has 7 holes for allen keys. It can be printed for either side of the dock, but is only compatible with the intended side.
 
IMPORTANT: To select correct orientation, look at the fork of your dock (your sled should be in your face if docked). Left is to your left, etc. Main tool caddie MUST be mounted opposite your arm hanger. If you have any questions, please reach out.
 
Now offering the Bonus Tool Caddie. This nifty add-on allows the user to store tools on both sides of their dock. Includes a block battery cable hanger, and room for 4 allen keys. 2 holes are fixed sizes and the other 2 hole sizes can be adjusted by the user by installing the included "allen key blocks," giving the operator endless flexibility.
 
*Pictured with Pro posts, but designed for X-arm posts*