Zephyrs Muscle Metal polish buffing Wheels are thicker, wider #5 packs. 

There is a lot more fabric in these wheels.  they cut more and faster.  And they last a lot longer.

They are manufactures in USA, and are high quality, as you would expect form Zephyr.

• More Cut
• Faster Cut
• Longer Life

These pads do not have a centre piece and must be used with the new Zephyr Aluminium centre safety flange.  This is reusable and not included.  Link to them.