Very close to the original fit for Triumph Perfekt portable typewriters. These are for the bottom of the case not the machine.

3D printed with synthetic rubber-like material.

I have been restoring vintage typewriters for over 7 years and the biggest pain is dealing with the old rubber foot mounts deteriorating. Decided to try 3D printing replacements for myself and they work great! Very sturdy and durable, great grip, and no scuff marks on the table.