Along with printed parts, you will need bungee cord (1/8" diameter by 30" long): https://www.amazon.com/gp/product/B0084EFBIU/ref=as_li_tl?ie=UTF8&tag=jingle1000-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B0084EFBIU&linkId=1f5bd4861c09d517a9c57dc633530865

Build Instructions Here: https://www.instructables.com/id/Snake-Puzzle-3D-Print/

Solution Video: https://youtu.be/JpehfwloYIE

Please let me know if you have any questions.