With indentations at bottom to support packing material. The jacket Length is 200mm, and the overall Length is 330mm. Laboy Glass Distillation Condenser Vacuum Jacketed Distilling Column with 24/40 Joint 330mm in Overall Height & 8mm Glass Hose Connections Organic Chemistry Lab... D Rubber tubing for water in and out. Laboy glass are all made of high-quality borosilicate glass and made by hand-blowing to ensure uniform wall thickness. Distillation condenser With 24/40 joints Laboy Glass Allihn Condenser for Reflux & Apparatus Glass Chromatography Column Laboy Glass Jacked Distillation Condenser With Removable Hose Lab Distillation Kit 200Mm in jacket length Spare Battery for the UltraCOM Handset With 24/40 top outer and bottom inner glass joint.