8100-K7-BP: 2-Channel Wireless Rat Backpack System Accessory KitFor first time buyers, Pinnacle recommends an accessory kit for use with the 2 Channel Potentiostat Backpack Kit for Rats (8100 K5 BP). The kit includes all necessary one time purchase accessories, as well as enough surgical supplies disposables to complete initial surgeries. The kit includes the following (quantities are 1 unless otherwise noted): 8134 10M: 10M 2 Pin Test Load 8156: Battery Remover 8165: Rat Jacket (select size) 8166: Electronics