Cork flask support ring

Cork flask support ring, I.D. × O.D. 30 mm × 80 mm

Cork flask support ring, I.D. × O.D. 60 mm × 110 mm

Cork flask support ring, I.D. × O.D. 90 mm × 140 mm

Cork flask support ring, I.D. × O.D. 120 mm × 170 mm

Cork flask support ring, I.D. × O.D. 150 mm × 210 mm

Cork flask support ring, I.D. × O.D. 180 mm × 230 mm