Details:The T1, T2, T3, T4, T5, T7, and T9 electrodes are for use with the ART-E1 Electrosurgery system.The electrodes are sold in an assorted set of seven, and also sold individually.Part Numbers and Descriptions:TE0002-002: Assorted set of 7 electrodesTE0001-012: T1 Diamond shaped electrodeTE0001-..