旋转多功能笔筒/Rotating multifunctional pen holder

旋转多功能笔筒/Rotating multifunctional pen holder 主体分为两部分，一边是一个可以旋转的笔筒，底部设计了个3D打印的平面轴承，另一边是两个小抽屉，主体和抽屉部分需开启树状支撑 The main body is divided into two parts, one side is a rotatable pen holder with a 3D printed flat bearing designed at the bottom, and the other side is two small drawers. The main body and drawer parts require tree shaped support to be opened