About this 3D model
This is Kick Trigger Unit. You need a bended beater like this.(https://www.amazon.com/Roland-KDB-7/dp/B003Y5A4QS/ref=sr11?ie=UTF8&qid=1506429731&sr=8-1&keywords=KD-7+roland) This project is under development. I will release the detailed production process on this blog. https://open-e-drums.tumblr.com/