Source google image: https://ae01.alicdn.com/kf/HTB1gdeXOXXXXXa7apXXq6xXFXXX3/5Pcs-3D-printer-parts-Openbuilds-Eccentric-Column-Isolation-Column-Hexagonal-Bore-5MM-High-6MM-6-35MM.jpg_640x640.jpg
Isolation 5 mm
Source google image: https://ae01.alicdn.com/kf/HTB1gdeXOXXXXXa7apXXq6xXFXXX3/5Pcs-3D-printer-parts-Openbuilds-Eccentric-Column-Isolation-Column-Hexagonal-Bore-5MM-High-6MM-6-35MM.jpg_640x640.jpg