This is a bench block used for removing roll pins and/or retaining pins from firearms.  It will print in 2 separate pieces, the first being the outer shell which should be printed in TPU (I found 90A to work the best) so that there is some cushion when hammering out pins.  The second piece is the inner area that contains the holes and ABS appears to be the best choice for this although PETG would probably also work.  I used CA glue to attach the two pieces together but most super glues should work as well.  There are 2 holes inside of the TPU outer shell for 8mm x 3mm magnets to be glued in.  These magnets will gather up and keep safe all of the pins that are knocked through.  If you like this print please leave feedback and boosts are greatly appreciated.  Please feel free to reach out to me with any suggestions or input you have