The perfect starter set for organic chemistry labs distillation fractional distillation separation purification and synthesis. All pieces made of 3.3 borosilicate glass that is hand blown and polished for perfect fit. Comes with case and foam to hold all components. This set comprises 8 items of 14/23 ground joint.Kit Contains:1 x Beaker 25 ml1 x Vigreux Column 100 mm1 x Liebig Condenser 100 mm1 x Still head Screw cap Adapter1 x Receiver Adapter Pear shaped1 x Flask 25 ml Thermometer -10 to 110°C