CooperSurgical RUMI II Koh-Efficient System. Box of 5 (Different Versions) Versions: CooperSurgical KC-RUMI-25 - Rumi II/Koh-Efficient for Electrosurgery, 2.5 cmCooperSurgical KC-RUMI-30 - Rumi II/Koh-Efficient for Electrosurgery, 3.0 cmCooperSurgical KC-RUMI-35 - Rumi II/Koh-Efficient for Electrosurgery, 3.5 cmCooperSurgical KC-RUMI-40 - Rumi II/Koh-Efficient for Electrosurgery, 4.0 cmCooperSurgical KCS-RUMI-25 - Stainless Steel Rumi II/Koh-Efficient Harmonic Scalpel/Laser, 2.5...