Cougartron O-ring secures the marking felt (white or carbon) and yellow fabric on the Cougartron Marking Head.

The O-ring works with both Marking Head variants:

Without Adaptor WELC4029
With Adaptor WELC4040

It can be used with Cougartron marking machines (MK12 and MK612) and Cougartron Etching Sets.

Sold in a pack of 5 pieces.