Along with printed parts, you will need bungee cord (1/8" diameter by 30" long): https://amzn.to/2RYPmsM Build Instructions Here: https://www.instructables.com/id/Snake-Puzzle-3D-Print/ Solution Video 1: https://youtu.be/JpehfwloYIE Solution Video 2: https://youtu.be/fnxhYGdj3PY Please let me know if you have any questions.