'Posting' or 'capping the pen' in the fountain pen world is refer for placing the cap on the back of the pen while drawing. If the cap is left off is 'unposted' or 'uncapped'.

If you are a pen poster, if you need to post the cap so you don't lose it, if you need a heavier balanced fountain pen for drawing this is the perfect accessory for your Indigraph. 

Our machined technical grade plastic end cap allows you to post the cap on your Indigraph.