simple bumper for Raspberry B (the old one)

i share this simple bumper for the raspberry B (the old, first i think raspberry).
The bumper is very simple to leave air flow and connection free, in my case used for protect my RP near the TV ( i do not like leave it alone on the desktop).
Bumper is made in 2 part, no need to print with support or glue, but if you need more mechanical strengh a drop of glue can solve all.

Made from scratch by me.