This set is made of high-quality borosilicate glass and all joints are ground 19/22. Set Includes: - 1 West condenser - 1 Distilling Column - 1 Round-bottom flask, 500ml - 1 Round-bottom flask, 250ml - 1 Round-bottom flask, 100ml - 1 Round-bottom flask, 50ml - 1 Round-bottom flask ...This set is made of high-quality borosilicate glass and all joints are ground 19/22. Set Includes: - 1 West condenser - 1 Distilling Column - 1 Round-bottom flask, 500ml - 1 Round-bottom flask, 250ml - 1 Round-bottom flask, 100ml - 1 Round-bottom flask, 50ml - 1 Round-bottom flask, 25ml - 1 Separatory funnel, 100ml - 1 Bleed tube - 1 Thermometer holder - 1 Thermometer adapter - 1 Three-way adapter - 1 Vacuum adapter - 1 Claisen adapter - 1 Stopper