About this 3D model

Added new parts, so I regenerated this Thing: - Loop: First image, it allows you to quickly reverse the ball's direction. Has associated clips, so that you can attach the loop to vertical bars to hold it in place, and attach a Cross Tie to each end to hold the rails. - Tee Bar: Makes it easy to run a loop around a vertical bar. Put a Cross Tie on each end of the Tee. Customized version of http://www.thingiverse.com/thing:63210 Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=63210