Two included chambers run up to four gels simultaneously.Contents:2 WARD’S Dual-Gel Electrophoresis Chambers1 WARD’S Variable-Voltage Electrophoresis Power Supply1 WARD’S Introduction to Agarose Gel Electrophoresis Lab Activity1 WARD’S Agarose Electrophoresis Manual1 WARD’S Agarose Electrophoresis Training Video