isolation foot using fishing gut / stretchable string

This is a isolation foot to isolate from the vibration of 3D printer.
I made this for 3D printer "FlashForge Adventurer3". It may be valid for other similar 3D printer. Especially suitable for printers of about the same weight（approximately 10 kg).

There are two type of foot.
One is for fishing gut, other one is for stretchable string.
Only the size of the holes for string is different. The one for fishing gut has 1.5mm diameter holes, and the one for stretchable string has 2.5mm diameter