Struble Select Redwood Burl Insert… Struble Select inserts are premium wood, stabilized, turned and given multiple coats of spar varnish for a glass-like finish.
Inserts are numbered; make a selection with the appropriate corresponding number to insert. This is the insert you will receive.
For Struble Model 20 & 24 and LC1 seats- .640 OD
NOTE: Inserts in the "Group Picture" may not be availble...Please make a selection from the "View Options" dropdown menu.