Goldleaf Scientific ACC160FH Plastic Flask Stand, 160mm, for Round Bottom Flasks up to 20L | 30-Day Refund Guarantee Go to amazon.com Related posts Top goldleaf scientific for 2022 Feature160mm size is for Round Bottom Flasks up to 20L DescriptionFlask rest / stand to keep round bottom flasks sitting upright. Concentric rings to accommodate different sizes of flasks.