Extra-Select "5 Star" Cork Rings
Species cork, 1-1/4"Dia. x 3/8"Long x 1/4" hole. FLor+ Extra Super Fine (also known as 5 Star); the very best available.
FYI - 17 rings = 6-3/8"L grip; 18 rings = 6-3/4"L grip; 19 rings = 7-1/8"L grip
