The file 'Spring And Pin Set For Foam Dart Pistol 3D Printer Model' is (STL) file type, size is 54.6KB.
Some people don't have 3mm filiment to use as pins and a spring for the following models:
http://www.thingiverse.com/thing:16223http://www.thingiverse.com/thing:7512
This file is a set of springs and pins for those items.
