It also helps keep the leather rigid and prevents it from flexing while sewing. 시중에서 판매되는 몇 가지 옵션을 살펴본 결과 직접 제작하는 것이 더 저렴할 것 같다는 결론을 내렸습니다. All in it was a hr project made good use of my milling machine and its going to save so much time!