About this 3D model

This is a cat collar pendant that works with our magnet-activated cat door. You can buy replacements for about 5 bucks each plus shipping, or print your own for about a dollar each. It is designed to captively contain two 1/4" dia. x 2/10" thick magnets. The print is paused at z-position ~12mm, the magnets are inserted, and the print is allowed to finish. My source is K&J Magnetics, and this is the part number: http://www.kjmagnetics.com/proddetail.asp?prod=D4H2 Note in one of the images I uploaded that there's no notch in the file, I just included the notch so you can see inside that there's a cavity for the magnets.