Organic Chemistry Glassware Deluxe Set has 16 pieces. The Deluxe Set is designed to cover essential requirements for organic chemistry and is suitable for preparations up to 150g. All glassware is jointed and the Set comes in a sturdy, form fitting case. Contents of Deluxe Set: one Still Head, one Receiver Cone, one Air Leak/Stem Inlet Tube, one Liebig Condenser, one 100mL Dropping Funnel, one Reducing Adapter, one Multiple Adapter, one 50mL Round Bottom Flask, one 100mL Round Bottom Flask, one 125mL Round Bottom Flask, one 250mL Erlenmeyer Flask, three Stoppers, one Thermometer Pocket,and one Receiver Adaptor.