Eisco Labs Advanced Organic Chemistry Distillation Glassware Set, 17 Piece, 22 Interchangeable Fittings, Borosilicate Glass Set consists of: Liebig condenser, Dropping funnel, Reduction adapter, Air Leak/Steam Inlet, Receiver Adapter, Multiple adapter, 250ml Erlenmeyer flask, 250ml Round bottom flask, 100ml Round bottom flask, 50ml Round bottom flask, 2 Stoppers (19/26), Socket Cone, 1 Stopper (24/29), Thermometer The perfect 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 Eisco E-Labglass guarantee, any piece breaks during shipping will be replaced free of charge Metal ware stands not included in set, recommended stands are Eisco: MTST1