WE ARE NOW INCLUDING TWO 7/8″ O-RINGS WITH EACH GUTSERT!
These are 7/8″ OD for use with a .625″ goose gut. The ID is slightly undersized for a tight fit. These can be turned down to 3/4″ on one side if you want or used with our goose blanks with are 7/8″.
These are made from delrin.