Rotating Pen Holder

Rotating Pen Holder than can hold up to 5 pens. Requires a bearing with inner diameter 10mm, outer diameter 30mm and 4mm width (can be found in any construction store or bought online.). Printed everything in 0.1mm resolution, however 0.2mm will probably print well too. Would not recommend lower resolution since the ball bearing has to be pressed into the bushing part. No supports needed.