About this 3D model

Two customized versions of http://www.thingiverse.com/thing:142079 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=142079 Size 20 to 30 mmMakerbot Replicator 2X Precision 0,20 mm, 15% infil, 90 mm/sABS Fluo Green