Update: 5/14/17 V2.0!
No longer depends on the plastic being able to keep its shape! Much easier to print and use now. There is also a video showing how to lace it onto the shoes correctly.
Two different versions, Easy and Clean. Easy is slightly easier to reclip, while clean looks a little bit better.
For the Easy version, have the option of printing the Body, Clip and the Lock, or the Body, Clip, Lock and Character. (The custom lock and character are ment more for children, being able to attach characters to the shoe)
For the Clean version, download all of clean files and print it.
A clip that gets attached to the laces on your shoes to make it much easier to take your shoes on and off. It allows your shoes to stay on tight while and use and be able to easily slip them off once you are done.